81231377920
81,231,377,920 is an even composite number composed of seven prime numbers multiplied together.
What does the number 81231377920 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 960 divisors.
81231377920 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of nine hundred sixty divisors.
Prime factorization of 81231377920:
29 × 5 × 7 × 11 × 19 × 232 × 41
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 11 × 19 × 23 × 23 × 41)See below for interesting mathematical facts about the number 81231377920 from the Numbermatics database.
Names of 81231377920
- Cardinal: 81231377920 can be written as Eighty-one billion, two hundred thirty-one million, three hundred seventy-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 8.123137792 × 1010
Factors of 81231377920
Divisors of 81231377920
- Number of divisors d(n): 960
-
Complete list of divisors:
1 2 4 5 7 8 10 11 14 16 19 20 22 23 28 32 35 38 40 41 44 46 55 56 64 70 76 77 80 82 88 92 95 110 112 115 128 133 140 152 154 160 161 164 176 184 190 205 209 220 224 230 253 256 266 280 287 304 308 320 322 328 352 368 380 385 410 418 437 440 448 451 460 506 512 529 532 560 574 608 616 640 644 656 665 704 736 760 770 779 805 820 836 874 880 896 902 920 943 1012 1045 1058 1064 1120 1148 1216 1232 1265 1280 1288 1312 1330 1408 1435 1463 1472 1520 1540 1558 1610 1640 1672 1748 1760 1771 1792 1804 1840 1886 2024 2090 2116 2128 2185 2240 2255 2296 2432 2464 2530 2560 2576 2624 2645 2660 2816 2870 2926 2944 3040 3059 3080 3116 3157 3220 3280 3344 3496 3520 3542 3584 3608 3680 3703 3772 3895 4048 4180 4232 4256 4370 4480 4510 4592 4715 4807 4864 4928 5060 5152 5248 5290 5320 5453 5632 5740 5819 5852 5888 6080 6118 6160 6232 6314 6440 6560 6601 6688 6992 7040 7084 7216 7315 7360 7406 7544 7790 8096 8360 8464 8512 8569 8740 8855 8960 9020 9184 9430 9614 9728 9856 10051 10120 10304 10373 10496 10580 10640 10906 11480 11638 11704 11776 12160 12236 12320 12464 12628 12880 13120 13202 13376 13984 14080 14168 14432 14630 14720 14812 15088 15295 15580 15785 16192 16720 16928 17024 17138 17480 17710 17917 17920 18040 18368 18515 18860 19228 19712 20102 20240 20608 20746 20992 21160 21280 21689 21812 22960 23276 23408 24035 24320 24472 24640 24928 25256 25760 26240 26404 26752 27265 27968 28160 28336 28864 29095 29260 29440 29624 30176 30590 31160 31570 32384 33005 33440 33649 33856 34048 34276 34960 35420 35834 36080 36736 37030 37720 38456 39424 40204 40480 40733 41216 41492 42320 42560 42845 43378 43624 45920 46552 46816 48070 48640 48944 49280 49856 50255 50512 51520 51865 52480 52808 53504 54530 55936 56672 57728 58190 58520 58880 59248 59983 60352 61180 62320 63140 64768 66010 66880 67298 67712 68096 68552 69920 70357 70840 71668 72160 72611 73472 74060 75440 76912 80408 80960 81466 82432 82984 84640 85120 85690 86756 87248 89585 91840 93104 93632 96140 97888 98560 99712 100510 101024 103040 103730 104960 105616 107008 108445 109060 110561 111872 113344 115456 116380 117040 118496 119966 120704 122360 124640 125419 126280 129536 132020 133760 134596 135424 137104 139840 140714 141680 143336 144320 145222 146944 148120 150880 151823 153824 160816 161920 162932 165968 168245 169280 170240 171380 173512 174496 179170 183680 186208 187264 192280 195776 197087 197120 199424 201020 202048 203665 206080 207460 211232 216890 218120 221122 223744 226688 230912 232760 234080 236992 238579 239932 241408 244720 249280 250838 252560 264040 267520 269192 270848 274208 279680 281428 283360 286672 288640 290444 296240 299915 301760 303646 307648 321632 323840 325864 331936 336490 338560 340480 342760 347024 348992 351785 358340 363055 367360 372416 374528 384560 391552 394174 398848 402040 404096 407330 412091 412160 414920 422464 433780 436240 442244 453376 465520 468160 473984 477158 479864 482816 489440 498560 501676 505120 528080 535040 538384 548416 552805 559360 562856 566720 573344 577280 580888 592480 599830 603520 607292 615296 627095 643264 647680 651728 663872 672980 677120 685520 694048 697984 703570 716680 726110 734720 744832 749056 759115 769120 773927 783104 788348 804080 808192 814660 824182 829840 844928 867560 872480 884488 906752 931040 936320 947968 954316 959728 978880 985435 997120 1003352 1010240 1056160 1076768 1096832 1105610 1118720 1125712 1133440 1146688 1154560 1161776 1184960 1192895 1199660 1207040 1214584 1230592 1254190 1286528 1303456 1327744 1345960 1354240 1371040 1379609 1388096 1395968 1407140 1433360 1452220 1489664 1518230 1538240 1547854 1566208 1576696 1608160 1616384 1629320 1648364 1659680 1670053 1689856 1735120 1744960 1768976 1862080 1872640 1895936 1908632 1919456 1957760 1970870 1994240 2006704 2020480 2060455 2112320 2153536 2193664 2211220 2251424 2266880 2293376 2323552 2369920 2385790 2399320 2414080 2429168 2461184 2508380 2573056 2606912 2655488 2691920 2742080 2759218 2776192 2791936 2814280 2866720 2884637 2904440 2979328 3036460 3076480 3095708 3153392 3216320 3258640 3296728 3319360 3340106 3379712 3470240 3489920 3537952 3724160 3745280 3817264 3838912 3869635 3915520 3941740 4013408 4040960 4120910 4224640 4307072 4387328 4422440 4502848 4533001 4533760 4586752 4647104 4739840 4771580 4798640 4858336 5016760 5146112 5213824 5310976 5383840 5484160 5518436 5552384 5628560 5733440 5769274 5808880 6072920 6152960 6191416 6306784 6432640 6517280 6593456 6638720 6680212 6898045 6940480 6979840 7075904 7448320 7634528 7677824 7739270 7831040 7883480 8026816 8081920 8241820 8350265 8449280 8614144 8844880 9005696 9066002 9173504 9294208 9479680 9543160 9597280 9716672 10033520 10427648 10767680 10968320 11036872 11104768 11257120 11466880 11538548 11617760 12145840 12305920 12382832 12613568 12865280 13034560 13186912 13277440 13360424 13796090 13880960 13959680 14151808 14423185 14896640 15269056 15355648 15478540 15766960 16053632 16483640 16700530 16898560 17228288 17689760 18011392 18132004 18588416 19086320 19194560 19433344 20067040 20855296 21535360 21936640 22073744 22514240 22665005 22933760 23077096 23235520 24291680 24765664 25227136 25730560 26069120 26373824 26554880 26720848 27592180 27761920 28303616 28846370 30538112 30711296 30957080 31533920 31731007 32107264 32967280 33401060 35379520 36022784 36264008 37176832 38172640 38389120 38866688 40134080 43070720 44147488 45028480 45330010 45867520 46154192 46471040 48583360 49531328 50454272 52138240 52747648 53441696 55184360 55523840 56607232 57692740 61076224 61914160 63067840 63462014 64214528 65934560 66802120 70759040 72528016 76345280 76778240 77733376 80268160 86141440 88294976 90056960 90660020 92308384 92942080 97166720 99062656 100908544 104276480 105495296 106883392 110368720 115385480 122152448 123828320 126135680 126924028 131869120 133604240 141518080 145056032 152690560 153556480 158655035 160536320 176589952 180113920 181320040 184616768 185884160 194333440 198125312 210990592 213766784 220737440 230770960 247656640 252271360 253848056 263738240 267208480 283036160 290112064 305381120 317310070 321072640 353179904 362640080 369233536 388666880 396250624 427533568 441474880 461541920 495313280 504542720 507696112 527476480 534416960 580224128 610762240 634620140 706359808 725280160 738467072 855067136 882949760 923083840 990626560 1015392224 1054952960 1068833920 1160448256 1269240280 1450560320 1476934144 1765899520 1846167680 1981253120 2030784448 2137667840 2320896512 2538480560 2901120640 3531799040 3692335360 4061568896 4275335680 5076961120 5802241280 7384670720 8123137792 10153922240 11604482560 16246275584 20307844480 40615688960 81231377920
- Sum of all divisors σ(n): 273717480960
- Sum of proper divisors (its aliquot sum) s(n): 192486103040
- 81231377920 is an abundant number, because the sum of its proper divisors (192486103040) is greater than itself. Its abundance is 111254725120
Bases of 81231377920
- Binary: 10010111010011100010001110110000000002
- Hexadecimal: 0x12E9C47600
- Base-36: 11BF2CCG
Squares and roots of 81231377920
- 81231377920 squared (812313779202) is 6598536758781863526400
- 81231377920 cubed (812313779203) is 536008233171621434954862297088000
-
The
square root of 81231377920 is 285011.1891136907 -
The
cube root of 81231377920 is 4330.8646055463
Scales and comparisons
How big is 81231377920?- 81,231,377,920 seconds is equal to 2,582 years, 47 weeks, 23 hours, 38 minutes, 40 seconds.
-
To count from 1 to 81,231,377,920 would take you about five thousand, one hundred sixty-five years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 81231377920 cubic inches would be around 360.9 feet tall.
Recreational maths with 81231377920
- 81231377920 backwards is 02977313218
- The number of decimal digits it has is: 11
- The sum of 81231377920's digits is 43
- More coming soon!
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 81231377920 - Facts about the integer". Numbermatics.com. 2024. Web. 21 June 2024.
APA style:
Numbermatics. (2024). Number 81231377920 - Facts about the integer. Retrieved 21 June 2024, from https://numbermatics.com/n/81231377920/
Chicago style:
Numbermatics. 2024. "Number 81231377920 - Facts about the integer". https://numbermatics.com/n/81231377920/
The information we have on file for 81231377920 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
Keywords: Divisors of 81231377920, math, Factors of 81231377920, curriculum, school, college, exams, university, Prime factorization of 81231377920, STEM, science, technology, engineering, physics, economics, calculator, eighty-one billion, two hundred thirty-one million, three hundred seventy-seven thousand, nine hundred twenty.