20138645537388

Names of 20138645537388

• Cardinal: 20138645537388 can be written as Twenty trillion, one hundred thirty-eight billion, six hundred forty-five million, five hundred thirty-seven thousand, three hundred eighty-eight.

Scientific notation

• Scientific notation: 2.0138645537388 × 10¹³

Factors of 20138645537388

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 209868

Divisors of 20138645537388

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 162 189 243 252 324 378 486 567 729 756 972 1134 1458 1579 1701 2187 2268 2916 3158 3402 4374 4737 5103 6316 6804 8748 9474 10206 11053 14211 15309 18948 20412 22106 28422 30618 33159 42633 44212 56844 61236 66318 85266 99477 127899 132636 170532 198954 208277 255798 298431 383697 397908 416554 511596 596862 624831 767394 833108 895293 1151091 1193724 1249662 1457939 1534788 1790586 1874493 2302182 2499324 2685879 2915878 3453273 3581172 3748986 4373817 4604364 5371758 5623479 5831756 6906546 7497972 8057637 8747634 10743516 11246958 13121451 13813092 16115274 16870437 17495268 22493916 24172911 26242902 32230548 33740874 39364353 48345822 50611311 52485804 67481748 78728706 96691644 101222622 118093059 151833933 157457412 202445244 236186118 303667866 328869383 354279177 455501799 472372236 607335732 657738766 708558354 911003598 986608149 1062837531 1315477532 1417116708 1822007196 1973216298 2125675062 2302085681 2959824447 3188512593 3946432596 4251350124 4604171362 5919648894 6377025186 6906257043 8879473341 9208342724 11839297788 12754050372 13812514086 17758946682 20718771129 26638420023 27625028172 35517893364 41437542258 53276840046 62156313387 79915260069 82875084516 106553680092 124312626774 159830520138 186468940161 239745780207 248625253548 319661040276 372937880322 479491560414 559406820483 719237340621 745875760644 958983120828 1118813640966 1438474681242 1678220461449 2237627281932 2876949362484 3356440922898 5034661384347 6712881845796 10069322768694 20138645537388
• Sum of all divisors σ(n): 60445274803200
• Sum of proper divisors (its aliquot sum) s(n): 40306629265812
• 20138645537388 is an abundant number, because the sum of its proper divisors (40306629265812) is greater than itself. Its abundance is 20167983728424

Bases of 20138645537388

• Binary: 100100101000011100100110100000100001001101100₂
• Hexadecimal: 0x1250E4D0426C
• Base-36: 74ZKDL6R0

Squares and roots of 20138645537388

• 20138645537388 squared (20138645537388²) is 405565044080557607305862544
• 20138645537388 cubed (20138645537388³) is 8167530665093488963944863667295740795072
• The square root of 20138645537388 is 4487610.2256532931
• The cube root of 20138645537388 is 27206.7554305413

Scales and comparisons

• 20,138,645,537,388 seconds is equal to 640,346 years, 33 weeks, 4 hours, 49 minutes, 48 seconds.
• To count from 1 to 20,138,645,537,388 would take you about one million, six hundred thousand, eight hundred sixty-six 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 20138645537388 cubic inches would be around 2267.2 feet tall.

Recreational maths with 20138645537388

• 20138645537388 backwards is 88373554683102
• 20138645537388 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20138645537388's digits is 63
• More coming soon!