138891755520

Names of 138891755520

• Cardinal: 138891755520 can be written as One hundred thirty-eight billion, eight hundred ninety-one million, seven hundred fifty-five thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.3889175552 × 10¹¹

Factors of 138891755520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 25
• Sum of prime factors: 46

Divisors of 138891755520

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 29 30 32 35 36 40 42 45 48 56 58 60 63 64 70 72 80 84 87 90 96 105 112 116 120 126 128 140 144 145 160 168 174 180 192 203 210 224 232 240 252 256 261 280 288 290 315 320 336 348 360 384 406 420 435 448 464 480 504 512 522 560 576 580 609 630 640 672 696 720 768 812 840 841 870 896 928 960 1008 1015 1024 1044 1120 1152 1160 1218 1260 1280 1305 1344 1392 1440 1536 1624 1680 1682 1740 1792 1827 1856 1920 2016 2030 2048 2088 2240 2304 2320 2436 2520 2523 2560 2610 2688 2784 2880 3045 3072 3248 3360 3364 3480 3584 3654 3712 3840 4032 4060 4096 4176 4205 4480 4608 4640 4872 5040 5046 5120 5220 5376 5568 5760 5887 6090 6144 6496 6720 6728 6960 7168 7308 7424 7569 7680 8064 8120 8192 8352 8410 8960 9135 9216 9280 9744 10080 10092 10240 10440 10752 11136 11520 11774 12180 12288 12615 12992 13440 13456 13920 14336 14616 14848 15138 15360 16128 16240 16384 16704 16820 17661 17920 18270 18432 18560 19488 20160 20184 20480 20880 21504 22272 23040 23548 24360 24576 25230 25984 26880 26912 27840 28672 29232 29435 29696 30276 30720 32256 32480 32768 33408 33640 35322 35840 36540 36864 37120 37845 38976 40320 40368 40960 41760 43008 44544 46080 47096 48720 49152 50460 51968 52983 53760 53824 55680 57344 58464 58870 59392 60552 61440 64512 64960 65536 66816 67280 70644 71680 73080 73728 74240 75690 77952 80640 80736 81920 83520 86016 88305 89088 92160 94192 97440 98304 100920 103936 105966 107520 107648 111360 114688 116928 117740 118784 121104 122880 129024 129920 131072 133632 134560 141288 143360 146160 147456 148480 151380 155904 161280 161472 163840 167040 172032 176610 178176 184320 188384 194880 196608 201840 207872 211932 215040 215296 222720 229376 233856 235480 237568 242208 245760 258048 259840 262144 264915 267264 269120 282576 286720 292320 294912 296960 302760 311808 322560 322944 327680 334080 344064 353220 356352 368640 376768 389760 393216 403680 415744 423864 430080 430592 445440 458752 467712 470960 475136 484416 491520 516096 519680 524288 529830 534528 538240 565152 573440 584640 589824 593920 605520 623616 645120 645888 655360 668160 688128 706440 712704 737280 753536 779520 786432 807360 831488 847728 860160 861184 890880 917504 935424 941920 950272 968832 983040 1032192 1039360 1059660 1069056 1076480 1130304 1146880 1169280 1179648 1187840 1211040 1247232 1290240 1291776 1310720 1336320 1376256 1412880 1425408 1474560 1507072 1559040 1572864 1614720 1662976 1695456 1720320 1722368 1781760 1835008 1870848 1883840 1900544 1937664 1966080 2064384 2078720 2119320 2138112 2152960 2260608 2293760 2338560 2359296 2375680 2422080 2494464 2580480 2583552 2621440 2672640 2752512 2825760 2850816 2949120 3014144 3118080 3229440 3325952 3390912 3440640 3444736 3563520 3670016 3741696 3767680 3801088 3875328 3932160 4128768 4157440 4238640 4276224 4305920 4521216 4587520 4677120 4718592 4751360 4844160 4988928 5160960 5167104 5345280 5505024 5651520 5701632 5898240 6028288 6236160 6458880 6651904 6781824 6881280 6889472 7127040 7483392 7535360 7602176 7750656 7864320 8257536 8314880 8477280 8552448 8611840 9042432 9175040 9354240 9502720 9688320 9977856 10321920 10334208 10690560 11010048 11303040 11403264 11796480 12056576 12472320 12917760 13303808 13563648 13762560 13778944 14254080 14966784 15070720 15204352 15501312 16515072 16629760 16954560 17104896 17223680 18084864 18350080 18708480 19005440 19376640 19955712 20643840 20668416 21381120 22606080 22806528 23592960 24113152 24944640 25835520 26607616 27127296 27525120 27557888 28508160 29933568 30141440 31002624 33030144 33259520 33909120 34209792 34447360 36169728 37416960 38010880 38753280 39911424 41287680 41336832 42762240 45212160 45613056 48226304 49889280 51671040 53215232 54254592 55050240 55115776 57016320 59867136 60282880 62005248 66519040 67818240 68419584 68894720 72339456 74833920 76021760 77506560 79822848 82575360 82673664 85524480 90424320 96452608 99778560 103342080 106430464 108509184 110231552 114032640 119734272 120565760 124010496 133038080 135636480 136839168 137789440 144678912 149667840 155013120 159645696 165150720 165347328 171048960 180848640 192905216 199557120 206684160 217018368 220463104 228065280 239468544 241131520 248020992 266076160 271272960 275578880 289357824 299335680 310026240 319291392 330694656 342097920 361697280 385810432 399114240 413368320 434036736 440926208 478937088 482263040 496041984 532152320 542545920 551157760 578715648 598671360 620052480 661389312 684195840 723394560 771620864 798228480 826736640 868073472 957874176 964526080 992083968 1085091840 1102315520 1157431296 1197342720 1240104960 1322778624 1446789120 1543241728 1596456960 1653473280 1736146944 1929052160 1984167936 2170183680 2204631040 2314862592 2394685440 2480209920 2893578240 3086483456 3306946560 3472293888 3858104320 3968335872 4340367360 4629725184 4789370880 4960419840 5787156480 6613893120 6944587776 7716208640 8680734720 9259450368 9920839680 11574312960 13889175552 15432417280 17361469440 19841679360 23148625920 27778351104 34722938880 46297251840 69445877760 138891755520
• Sum of all divisors σ(n): 569904706800
• Sum of proper divisors (its aliquot sum) s(n): 431012951280
• 138891755520 is an abundant number, because the sum of its proper divisors (431012951280) is greater than itself. Its abundance is 292121195760

Bases of 138891755520

• Binary: 10000001010110100110000000000000000000₂
• Hexadecimal: 0x2056980000
• Base-36: 1RT0KCG0

Squares and roots of 138891755520

• 138891755520 squared (138891755520²) is 19290919751427450470400
• 138891755520 cubed (138891755520³) is 2679349709871200621751705796608000
• The square root of 138891755520 is 372681.8422193387
• The cube root of 138891755520 is 5178.7564721689

Scales and comparisons

• 138,891,755,520 seconds is equal to 4,416 years, 17 weeks, 11 hours, 12 minutes.
• To count from 1 to 138,891,755,520 would take you about eight thousand, eight hundred thirty-two 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 138891755520 cubic inches would be around 431.6 feet tall.

Recreational maths with 138891755520

• 138891755520 backwards is 025557198831
• The number of decimal digits it has is: 12
• The sum of 138891755520's digits is 54
• More coming soon!