31389644881920

Names of 31389644881920

• Cardinal: 31389644881920 can be written as Thirty-one trillion, three hundred eighty-nine billion, six hundred forty-four million, eight hundred eighty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.138964488192 × 10¹³

Factors of 31389644881920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 25
• Sum of prime factors: 66

Divisors of 31389644881920

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 43 48 52 60 64 65 78 80 86 96 104 120 128 129 130 156 160 169 172 192 195 208 215 240 256 258 260 312 320 338 344 384 390 416 430 480 507 512 516 520 559 624 640 645 676 688 768 780 832 845 860 960 1014 1024 1032 1040 1118 1248 1280 1290 1352 1376 1536 1560 1664 1677 1690 1720 1920 2028 2048 2064 2080 2197 2236 2496 2535 2560 2580 2704 2752 2795 3072 3120 3328 3354 3380 3440 3840 4056 4096 4128 4160 4394 4472 4992 5070 5120 5160 5408 5504 5590 6144 6240 6591 6656 6708 6760 6880 7267 7680 8112 8192 8256 8320 8385 8788 8944 9984 10140 10240 10320 10816 10985 11008 11180 12288 12480 13182 13312 13416 13520 13760 14534 15360 16224 16384 16512 16640 16770 17576 17888 19968 20280 20480 20640 21632 21801 21970 22016 22360 24576 24960 26364 26624 26832 27040 27520 28561 29068 30720 32448 32768 32955 33024 33280 33540 35152 35776 36335 39936 40560 40960 41280 43264 43602 43940 44032 44720 49152 49920 52728 53248 53664 54080 55040 57122 58136 61440 64896 65536 65910 66048 66560 67080 70304 71552 72670 79872 81120 81920 82560 85683 86528 87204 87880 88064 89440 94471 98304 99840 105456 106496 107328 108160 109005 110080 114244 116272 122880 129792 131072 131820 132096 133120 134160 140608 142805 143104 145340 159744 162240 163840 165120 171366 173056 174408 175760 176128 178880 188942 196608 199680 210912 212992 214656 216320 218010 220160 228488 232544 245760 259584 263640 264192 266240 268320 281216 283413 285610 286208 290680 319488 324480 327680 330240 342732 346112 348816 351520 352256 357760 371293 377884 393216 399360 421824 425984 428415 429312 432640 436020 440320 456976 465088 472355 491520 519168 527280 528384 532480 536640 562432 566826 571220 572416 581360 638976 648960 655360 660480 685464 692224 697632 703040 704512 715520 742586 755768 798720 843648 851968 856830 858624 865280 872040 880640 913952 930176 944710 983040 1038336 1054560 1056768 1064960 1073280 1113879 1124864 1133652 1142440 1144832 1162720 1228123 1277952 1297920 1320960 1370928 1384448 1395264 1406080 1409024 1417065 1431040 1485172 1511536 1597440 1687296 1703936 1713660 1717248 1730560 1744080 1761280 1827904 1856465 1860352 1889420 1966080 2076672 2109120 2113536 2129920 2146560 2227758 2249728 2267304 2284880 2289664 2325440 2456246 2555904 2595840 2641920 2741856 2768896 2790528 2812160 2818048 2834130 2862080 2970344 3023072 3194880 3374592 3427320 3434496 3461120 3488160 3522560 3655808 3684369 3712930 3720704 3778840 4153344 4218240 4227072 4259840 4293120 4455516 4499456 4534608 4569760 4579328 4650880 4912492 5111808 5191680 5283840 5483712 5537792 5569395 5581056 5624320 5636096 5668260 5724160 5940688 6046144 6140615 6389760 6749184 6854640 6868992 6922240 6976320 7045120 7311616 7368738 7425860 7441408 7557680 8306688 8436480 8454144 8519680 8586240 8911032 8998912 9069216 9139520 9158656 9301760 9824984 10383360 10567680 10967424 11075584 11138790 11162112 11248640 11336520 11448320 11881376 12092288 12281230 12779520 13498368 13709280 13737984 13844480 13952640 14090240 14623232 14737476 14851720 14882816 15115360 15965599 16613376 16872960 16908288 17172480 17822064 17997824 18138432 18279040 18317312 18421845 18603520 19649968 20766720 21135360 21934848 22151168 22277580 22324224 22497280 22673040 22896640 23762752 24184576 24562460 25559040 26996736 27418560 27475968 27688960 27905280 28180480 29246464 29474952 29703440 29765632 30230720 31931198 33226752 33745920 34344960 35644128 35995648 36276864 36558080 36634624 36843690 37207040 39299936 41533440 42270720 43869696 44555160 44648448 44994560 45346080 45793280 47525504 47896797 48369152 49124920 53993472 54837120 54951936 55377920 55810560 58492928 58949904 59406880 59531264 60461440 63862396 66453504 67491840 68689920 71288256 71991296 72553728 73116160 73269248 73687380 74414080 78599872 79827995 83066880 84541440 87739392 89110320 89296896 89989120 90692160 91586560 95051008 95793594 96738304 98249840 107986944 109674240 109903872 110755840 111621120 116985856 117899808 118813760 119062528 120922880 127724792 134983680 137379840 142576512 143982592 145107456 146232320 147374760 148828160 157199744 159655990 166133760 175478784 178220640 178593792 179978240 181384320 183173120 190102016 191587188 193476608 196499680 215973888 219348480 219807744 223242240 233971712 235799616 237627520 238125056 239483985 241845760 255449584 269967360 274759680 285153024 287965184 290214912 292464640 294749520 297656320 314399488 319311980 332267520 350957568 356441280 357187584 359956480 362768640 366346240 380204032 383174376 386953216 392999360 431947776 438696960 446484480 467943424 471599232 475255040 476250112 478967970 483691520 510899168 539934720 549519360 570306048 580429824 584929280 589499040 595312640 628798976 638623960 701915136 712882560 714375168 719912960 725537280 760408064 766348752 773906432 785998720 863895552 877393920 892968960 935886848 943198464 950510080 952500224 957935940 967383040 1021798336 1079869440 1099038720 1140612096 1160859648 1169858560 1178998080 1190625280 1257597952 1277247920 1403830272 1425765120 1428750336 1439825920 1451074560 1520816128 1532697504 1547812864 1571997440 1754787840 1785937920 1871773696 1886396928 1901020160 1915871880 1934766080 2043596672 2159738880 2281224192 2321719296 2339717120 2357996160 2381250560 2515195904 2554495840 2807660544 2851530240 2857500672 2902149120 3041632256 3065395008 3095625728 3143994880 3509575680 3571875840 3743547392 3772793856 3802040320 3831743760 3869532160 4087193344 4319477760 4562448384 4643438592 4679434240 4715992320 4762501120 5030391808 5108991680 5615321088 5703060480 5804298240 6083264512 6130790016 6191251456 6287989760 7019151360 7143751680 7545587712 7604080640 7663487520 7739064320 8174386688 9124896768 9286877184 9358868480 9431984640 10060783616 10217983360 11230642176 11406120960 11608596480 12166529024 12261580032 12382502912 12575979520 14038302720 14287503360 15091175424 15208161280 15326975040 15478128640 16348773376 18249793536 18573754368 18717736960 18863969280 20121567232 20435966720 22812241920 23217192960 24333058048 24523160064 25151959040 28076605440 30182350848 30416322560 30653950080 30956257280 32697546752 36499587072 37147508736 37727938560 40243134464 40871933440 45624483840 46434385920 48666116096 49046320128 50303918080 56153210880 60364701696 60832645120 61307900160 61912514560 65395093504 72999174144 75455877120 80486268928 81743866880 91248967680 92868771840 98092640256 100607836160 120729403392 121665290240 122615800320 130790187008 145998348288 150911754240 160972537856 163487733760 182497935360 185737543680 196185280512 201215672320 241458806784 243330580480 245231600640 261580374016 301823508480 326975467520 364995870720 392370561024 402431344640 482917613568 490463201280 523160748032 603647016960 653950935040 729991741440 784741122048 804862689280 980926402560 1046321496064 1207294033920 1307901870080 1569482244096 1961852805120 2092642992128 2414588067840 2615803740160 3138964488192 3923705610240 5231607480320 6277928976384 7847411220480 10463214960640 15694822440960 31389644881920
• Sum of all divisors σ(n): 111347625799872
• Sum of proper divisors (its aliquot sum) s(n): 79957980917952
• 31389644881920 is an abundant number, because the sum of its proper divisors (79957980917952) is greater than itself. Its abundance is 48568336036032

Bases of 31389644881920

• Binary: 111001000110001111000101000100000000000000000₂
• Hexadecimal: 0x1C8C78A20000
• Base-36: B4K7C3THC

Squares and roots of 31389644881920

• 31389644881920 squared (31389644881920²) is 985309805813046450742886400
• 31389644881920 cubed (31389644881920³) is 30928524903145082586924665467607973888000
• The square root of 31389644881920 is 5602646.2392266031
• The cube root of 31389644881920 is 31544.8742745805

Scales and comparisons

• 31,389,644,881,920 seconds is equal to 998,093 years, 31 weeks, 6 days, 32 minutes.
• To count from 1 to 31,389,644,881,920 would take you about two million, four hundred ninety-five thousand, two hundred thirty-four 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 31389644881920 cubic inches would be around 2628.7 feet tall.

Recreational maths with 31389644881920

• 31389644881920 backwards is 02918844698313
• The number of decimal digits it has is: 14
• The sum of 31389644881920's digits is 66
• More coming soon!