18421232640

Names of 18421232640

• Cardinal: 18421232640 can be written as Eighteen billion, four hundred twenty-one million, two hundred thirty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.842123264 × 10¹⁰

Factors of 18421232640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 172

Divisors of 18421232640

• Number of divisors d(n): 704
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 19 20 24 30 32 34 38 40 47 48 51 57 60 64 68 76 79 80 85 94 95 96 102 114 120 128 136 141 152 158 160 170 188 190 192 204 228 235 237 240 255 256 272 282 285 304 316 320 323 340 376 380 384 395 408 456 470 474 480 510 512 544 564 570 608 632 640 646 680 705 752 760 768 790 799 816 893 912 940 948 960 969 1020 1024 1088 1128 1140 1185 1216 1264 1280 1292 1343 1360 1410 1501 1504 1520 1536 1580 1598 1615 1632 1786 1824 1880 1896 1920 1938 2040 2176 2256 2280 2370 2397 2432 2528 2560 2584 2679 2686 2720 2820 3002 3008 3040 3072 3160 3196 3230 3264 3572 3648 3713 3760 3792 3840 3876 3995 4029 4080 4352 4465 4503 4512 4560 4740 4794 4845 4864 5056 5120 5168 5358 5372 5440 5640 6004 6016 6080 6320 6392 6460 6528 6715 7144 7296 7426 7505 7520 7584 7680 7752 7990 8058 8160 8704 8930 9006 9024 9120 9480 9588 9690 9728 10112 10336 10716 10744 10880 11139 11280 11985 12008 12032 12160 12640 12784 12920 13056 13395 13430 14288 14592 14852 15010 15040 15168 15181 15360 15504 15980 16116 16320 17408 17860 18012 18048 18240 18565 18960 19176 19380 19456 20145 20224 20672 21432 21488 21760 22278 22515 22560 23970 24016 24064 24320 25280 25517 25568 25840 26112 26790 26860 28576 29184 29704 30020 30080 30336 30362 31008 31960 32232 32640 35720 36024 36096 36480 37130 37920 38352 38760 40290 40448 41344 42864 42976 43520 44556 45030 45120 45543 47940 48032 48128 48640 50560 51034 51136 51680 52224 53580 53720 55695 57152 58368 59408 60040 60160 60672 60724 62016 63121 63920 64464 65280 70547 71440 72048 72192 72960 74260 75840 75905 76551 76704 77520 80580 80896 82688 85728 85952 87040 89112 90060 90240 91086 95880 96064 97280 101120 102068 102272 103360 107160 107440 111390 114304 118816 120080 120320 121344 121448 124032 126242 127585 127840 128928 130560 141094 142880 144096 144384 145920 148520 151680 151810 153102 153408 155040 161160 165376 171456 171904 178224 180120 180480 182172 189363 191760 192128 202240 204136 204544 206720 211641 214320 214880 222780 227715 228608 237632 240160 240640 242688 242896 248064 252484 255170 255680 257856 261120 282188 285760 288192 291840 297040 303360 303620 306204 306816 310080 315605 322320 330752 342912 343808 352735 356448 360240 360960 364344 378726 382755 383520 384256 404480 408272 409088 413440 423282 428640 429760 445560 455430 457216 475264 480320 485792 496128 504968 510340 511360 515712 564376 571520 576384 594080 606720 607240 612408 613632 620160 631210 644640 685824 687616 705470 712896 720480 721920 728688 757452 765510 767040 768512 816544 818176 826880 846564 857280 859520 891120 910860 914432 946815 950528 960640 971584 992256 1009936 1020680 1022720 1031424 1058205 1128752 1143040 1152768 1188160 1199299 1213440 1214480 1224816 1227264 1240320 1262420 1289280 1371648 1375232 1410940 1425792 1440960 1457376 1514904 1531020 1534080 1537024 1633088 1653760 1693128 1714560 1719040 1782240 1821720 1893630 1901056 1921280 1943168 2019872 2041360 2045440 2062848 2116410 2257504 2286080 2305536 2376320 2398598 2428960 2449632 2454528 2480640 2524840 2578560 2743296 2821880 2851584 2881920 2914752 3029808 3062040 3068160 3266176 3386256 3429120 3438080 3564480 3597897 3643440 3787260 3802112 3842560 3886336 4039744 4082720 4090880 4125696 4232820 4515008 4572160 4611072 4752640 4797196 4857920 4899264 4961280 5049680 5157120 5643760 5703168 5763840 5829504 5996495 6059616 6124080 6136320 6532352 6772512 6858240 6876160 7128960 7195794 7286880 7574520 7685120 7772672 8079488 8165440 8465640 9030016 9505280 9594392 9715840 9798528 10099360 10314240 11287520 11406336 11527680 11659008 11992990 12119232 12248160 12272640 13064704 13545024 13716480 14257920 14391588 14573760 15149040 15545344 16158976 16330880 16931280 17989485 18060032 19010560 19188784 19431680 19597056 20198720 20628480 22575040 23055360 23318016 23985980 24238464 24496320 26129408 27090048 28515840 28783176 29147520 30298080 32317952 32661760 33862560 35978970 36120064 38377568 38863360 39194112 40397440 45150080 46636032 47971960 48476928 48992640 54180096 57031680 57566352 58295040 60596160 64635904 65323520 67725120 71957940 72240128 76755136 77726720 78388224 80794880 90300160 95943920 96953856 97985280 108360192 115132704 116590080 121192320 130647040 135450240 143915880 153510272 161589760 180600320 191887840 193907712 195970560 216720384 230265408 233180160 242384640 270900480 287831760 307020544 323179520 361200640 383775680 391941120 460530816 484769280 541800960 575663520 614041088 767551360 921061632 969538560 1083601920 1151327040 1228082176 1535102720 1842123264 2302654080 3070205440 3684246528 4605308160 6140410880 9210616320 18421232640
• Sum of all divisors σ(n): 67914547200
• Sum of proper divisors (its aliquot sum) s(n): 49493314560
• 18421232640 is an abundant number, because the sum of its proper divisors (49493314560) is greater than itself. Its abundance is 31072081920

Bases of 18421232640

• Binary: 10001001001111111011011010000000000₂
• Hexadecimal: 0x449FDB400
• Base-36: 8GNIY2O

Squares and roots of 18421232640

• 18421232640 squared (18421232640²) is 339341811977001369600
• 18421232640 cubed (18421232640³) is 6251094462907480559000223744000
• The square root of 18421232640 is 135724.8416466197
• The cube root of 18421232640 is 2641.0273320355

Scales and comparisons

• 18,421,232,640 seconds is equal to 585 years, 38 weeks, 2 days, 17 hours, 4 minutes.
• To count from 1 to 18,421,232,640 would take you about one thousand, one hundred seventy-one 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 18421232640 cubic inches would be around 220.1 feet tall.

Recreational maths with 18421232640

• 18421232640 backwards is 04623212481
• The number of decimal digits it has is: 11
• The sum of 18421232640's digits is 33
• More coming soon!