138719181920

Names of 138719181920

• Cardinal: 138719181920 can be written as One hundred thirty-eight billion, seven hundred nineteen million, one hundred eighty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.3871918192 × 10¹¹

Factors of 138719181920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1507

Divisors of 138719181920

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 31 32 40 44 55 62 80 88 110 121 124 155 160 176 181 220 242 248 310 341 352 362 440 484 496 605 620 682 724 880 905 968 992 1210 1240 1277 1364 1448 1705 1760 1810 1936 1991 2420 2480 2554 2728 2896 3410 3620 3751 3872 3982 4840 4960 5108 5456 5611 5792 6385 6820 7240 7502 7964 9680 9955 10216 10912 11222 12770 13640 14047 14480 15004 15928 18755 19360 19910 20432 21901 22444 25540 27280 28055 28094 28960 30008 31856 37510 39587 39820 40864 43802 44888 51080 54560 56110 56188 60016 61721 63712 70235 75020 79174 79640 87604 89776 102160 109505 112220 112376 120032 123442 140470 150040 154517 158348 159280 175208 179552 197935 204320 219010 224440 224752 231137 246884 280940 300080 308605 309034 316696 318560 350416 395870 435457 438020 448880 449504 462274 493768 561880 600160 617210 618068 633392 678931 700832 772585 791740 870914 876040 897760 924548 987536 1123760 1155685 1234420 1236136 1266784 1357862 1545170 1583480 1741828 1752080 1849096 1975072 2177285 2247520 2311370 2468840 2472272 2542507 2715724 3090340 3166960 3394655 3483656 3504160 3698192 4354570 4622740 4790027 4937680 4944544 5085014 5431448 6180680 6333920 6789310 6967312 7165247 7396384 8709140 9245480 9580054 9875360 10170028 10862896 12361360 12712535 13578620 13934624 14330494 17418280 18490960 19160108 20340056 21725792 23950135 24722720 25425070 27157240 27967577 28660988 34836560 35826235 36981920 38320216 40680112 47900270 50850140 54314480 55935154 57321976 69673120 71652470 76640432 78817717 81360224 95800540 101700280 108628960 111870308 114643952 139837885 143304940 153280864 157635434 191601080 203400560 223740616 229287904 279675770 286609880 315270868 383202160 394088585 406801120 447481232 559351540 573219760 630541736 766404320 788177170 866994887 894962464 1118703080 1146439520 1261083472 1576354340 1733989774 2237406160 2522166944 3152708680 3467979548 4334974435 4474812320 6305417360 6935959096 8669948870 12610834720 13871918192 17339897740 27743836384 34679795480 69359590960 138719181920
• Sum of all divisors σ(n): 374193001728
• Sum of proper divisors (its aliquot sum) s(n): 235473819808
• 138719181920 is an abundant number, because the sum of its proper divisors (235473819808) is greater than itself. Its abundance is 96754637888

Bases of 138719181920

• Binary: 10000001001100010011101011110001100000₂
• Hexadecimal: 0x204C4EBC60
• Base-36: 1RQ5THSW

Squares and roots of 138719181920

• 138719181920 squared (138719181920²) is 19243011432554054886400
• 138719181920 cubed (138719181920³) is 2669374803601105750020186533888000
• The square root of 138719181920 is 372450.2408644677
• The cube root of 138719181920 is 5176.6107075305

Scales and comparisons

• 138,719,181,920 seconds is equal to 4,410 years, 43 weeks, 5 days, 2 hours, 5 minutes, 20 seconds.
• To count from 1 to 138,719,181,920 would take you about eight thousand, eight hundred twenty-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 138719181920 cubic inches would be around 431.4 feet tall.

Recreational maths with 138719181920

• 138719181920 backwards is 029181917831
• The number of decimal digits it has is: 12
• The sum of 138719181920's digits is 50
• More coming soon!