129129480720

Names of 129129480720

• Cardinal: 129129480720 can be written as One hundred twenty-nine billion, one hundred twenty-nine million, four hundred eighty thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.2912948072 × 10¹¹

Factors of 129129480720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 185

Divisors of 129129480720

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 31 36 40 45 47 48 54 60 62 72 80 81 90 93 94 97 108 120 124 135 141 144 155 162 180 186 188 194 216 235 240 243 248 270 279 282 291 310 324 360 372 376 388 405 423 432 465 470 485 486 496 540 558 564 582 620 648 705 720 744 752 776 810 837 846 873 930 940 970 972 1080 1116 1128 1164 1215 1240 1269 1296 1395 1410 1455 1457 1488 1552 1620 1674 1692 1746 1860 1880 1940 1944 2115 2160 2209 2232 2256 2328 2430 2480 2511 2538 2619 2790 2820 2910 2914 3007 3240 3348 3384 3492 3720 3760 3807 3880 3888 4185 4230 4365 4371 4418 4464 4559 4656 4860 5022 5076 5238 5580 5640 5820 5828 6014 6345 6480 6627 6696 6768 6984 7285 7440 7533 7614 7760 7857 8370 8460 8730 8742 8836 9021 9118 9720 10044 10152 10476 11045 11160 11280 11421 11640 11656 12028 12555 12690 13095 13113 13254 13392 13677 13968 14570 15035 15066 15228 15714 16740 16920 17460 17484 17672 18042 18236 19035 19440 19881 20088 20304 20952 21855 22090 22320 22795 22842 23280 23312 23571 24056 25110 25380 26190 26226 26508 27063 27354 29140 30070 30132 30456 31428 33135 33480 33840 34920 34968 35344 36084 36472 37665 38070 39285 39339 39762 40176 41031 41904 43710 44180 45105 45590 45684 47142 48112 50220 50760 52380 52452 53016 54126 54708 57105 58280 59643 60140 60264 60912 62856 65565 66270 66960 68385 68479 69840 69936 72168 72944 75330 76140 78570 78678 79524 81189 82062 87420 88360 90210 91180 91368 94284 99405 100440 101520 104760 104904 106032 108252 109416 114210 116560 117855 118017 119286 120280 120528 123093 125712 131130 132540 135315 136770 136958 141329 144336 150660 152280 157140 157356 159048 162378 164124 174840 176720 178929 180420 182360 182736 188568 196695 198810 200880 205155 205437 209520 209808 214273 216504 218832 228420 235710 236034 238572 240560 243567 246186 262260 265080 270630 273540 273916 282658 298215 301320 304560 314280 314712 318096 324756 328248 342395 349680 354051 357858 360840 364720 369279 377136 393390 397620 405945 410310 410874 423987 428546 433008 456840 471420 472068 477144 487134 492372 524520 530160 536787 541260 547080 547832 565316 590085 596430 602640 615465 616311 628560 629424 642819 649512 656496 684790 706645 708102 715716 721680 730701 738558 786780 795240 811890 820620 821748 847974 857092 894645 913680 942840 944136 954288 974268 984744 1027185 1049040 1071365 1073574 1082520 1094160 1095664 1107837 1130632 1180170 1192860 1217835 1230930 1232622 1271961 1285638 1299024 1369580 1413290 1416204 1431432 1461402 1477116 1573560 1590480 1623780 1641240 1643496 1695948 1714184 1770255 1789290 1846395 1848933 1885680 1888272 1928457 1948536 1969488 2054370 2119935 2142730 2147148 2165040 2215674 2261264 2360340 2385720 2435670 2461860 2465244 2543922 2571276 2683935 2739160 2826580 2832408 2862864 2922804 2954232 3081555 3147120 3214095 3247560 3282480 3286992 3391896 3428368 3540510 3578580 3653505 3692790 3697866 3815883 3856914 3897072 4108740 4239870 4285460 4294296 4431348 4720680 4771440 4871340 4923720 4930488 5087844 5142552 5367870 5478320 5539185 5546799 5653160 5664816 5785371 5845608 5908464 6163110 6359805 6428190 6495120 6642463 6783792 7081020 7157160 7307010 7385580 7395732 7631766 7713828 8217480 8479740 8570920 8588592 8862696 9244665 9441360 9642285 9742680 9847440 9860976 10175688 10285104 10735740 11078370 11093598 11306320 11447649 11570742 11691216 12326220 12719610 12856380 13284926 14162040 14314320 14614020 14771160 14791464 15263532 15427656 16434960 16640397 16959480 17141840 17356113 17725392 18489330 19079415 19284570 19485360 19927389 20351376 21471480 22156740 22187196 22895298 23141484 24652440 25439220 25712760 26569852 27733995 28324080 28926855 29228040 29542320 29582928 30527064 30855312 33212315 33280794 33918960 34342947 34712226 36978660 38158830 38569140 39854778 42942960 44313480 44374392 45790596 46282968 49304880 50878440 51425520 52068339 53139704 55467990 57238245 57853710 58456080 59782167 61054128 66424630 66561588 68685894 69424452 73957320 76317660 77138280 79709556 83201985 86780565 88626960 88748784 91581192 92565936 99636945 101756880 104136678 106279408 110935980 114476490 115707420 119564334 132849260 133123176 137371788 138848904 147914640 152635320 154276560 159419112 166403970 171714735 173561130 179346501 183162384 199273890 208273356 221871960 228952980 231414840 239128668 260341695 265698520 266246352 274743576 277697808 298910835 305270640 318838224 332807940 343429470 347122260 358693002 398547780 416546712 443743920 457905960 462829680 478257336 520683390 531397040 538039503 549487152 597821670 665615880 686858940 694244520 717386004 797095560 833093424 896732505 915811920 956514672 1041366780 1076079006 1195643340 1331231760 1373717880 1388489040 1434772008 1594191120 1614118509 1793465010 2082733560 2152158012 2391286680 2690197515 2747435760 2869544016 3228237018 3586930020 4165467120 4304316024 4782573360 5380395030 6456474036 7173860040 8070592545 8608632048 10760790060 12912948072 14347720080 16141185090 21521580120 25825896144 32282370180 43043160240 64564740360 129129480720
• Sum of all divisors σ(n): 479205662208
• Sum of proper divisors (its aliquot sum) s(n): 350076181488
• 129129480720 is an abundant number, because the sum of its proper divisors (350076181488) is greater than itself. Its abundance is 220946700768

Bases of 129129480720

• Binary: 1111000010000101101111000001000010000₂
• Hexadecimal: 0x1E10B78210
• Base-36: 1NBKCX00

Squares and roots of 129129480720

• 129129480720 squared (129129480720²) is 16674422791016851718400
• 129129480720 cubed (129129480720³) is 2153159556309739143166231669248000
• The square root of 129129480720 is 359345.9067806395
• The cube root of 129129480720 is 5054.4643164355

Scales and comparisons

• 129,129,480,720 seconds is equal to 4,105 years, 47 weeks, 5 days, 4 hours, 12 minutes.
• To count from 1 to 129,129,480,720 would take you about eight thousand, two hundred eleven 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 129129480720 cubic inches would be around 421.2 feet tall.

Recreational maths with 129129480720

• 129129480720 backwards is 027084921921
• 129129480720 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129129480720's digits is 45
• More coming soon!