13438791164865

Names of 13438791164865

• Cardinal: 13438791164865 can be written as Thirteen trillion, four hundred thirty-eight billion, seven hundred ninety-one million, one hundred sixty-four thousand, eight hundred sixty-five.

Scientific notation

• Scientific notation: 1.3438791164865 × 10¹³

Factors of 13438791164865

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 19832

Divisors of 13438791164865

• Number of divisors d(n): 256
• Complete list of divisors:
  1 3 5 11 15 17 31 33 41 51 55 85 93 123 155 165 187 193 205 255 341 451 465 527 561 579 615 697 935 965 1023 1271 1353 1581 1705 2091 2123 2255 2635 2805 2895 3281 3485 3813 5115 5797 5983 6355 6369 6765 7667 7905 7913 9843 10455 10615 13981 16405 17391 17949 19065 19531 21607 23001 23739 28985 29915 31845 36091 38335 39565 41943 49215 58593 64821 65813 69905 86955 87043 89745 97655 101711 108035 108273 115005 118695 134521 180455 197439 209715 214841 237677 245303 261129 292965 305133 324105 329065 332027 403563 435215 508555 541365 605461 644523 672605 713031 735909 800771 987195 996081 1074205 1118821 1188385 1226515 1305645 1479731 1525665 1660135 1816383 2017815 2402313 2698333 3027305 3222615 3356463 3565155 3652297 3679545 3769483 4003855 4170151 4439193 4980405 5594105 6660071 7398655 8094999 8808481 9081915 10292837 10956891 11308449 12011565 12510453 13491665 13613107 16782315 18261485 18847415 19980213 20850755 22195965 24823901 26425443 30878511 33300355 40474995 40839321 41464313 44042405 45871661 51464185 54784455 56542245 62552265 64081211 68065535 74471703 99901065 113221207 116853973 124119505 124392939 132127215 137614983 149744177 154392555 154548803 192243633 204196605 207321565 229358305 273062911 320406055 339663621 350561919 372358515 422006317 449232531 463646409 566106035 584269865 621964695 688074915 704893321 748720885 772744015 819188733 961218165 1266018951 1285393703 1365314555 1698318105 1700036833 1752809595 1986517541 2110031585 2114679963 2246162655 2318232045 2627329651 3524466605 3856181109 4095943665 4642069487 4791012893 5100110499 5959552623 6330094755 6426968515 7881988953 8500184165 9932587705 10573399815 13136648255 13926208461 14373038679 19280905545 21851692951 23210347435 23955064465 25500552495 28900626161 29797763115 39409944765 52701141823 65555078853 69631042305 71865193395 81447219181 86701878483 109258464755 144503130805 158103425469 244341657543 263505709115 327775394265 407236095905 433509392415 790517127345 895919410991 1221708287715 2687758232973 4479597054955 13438791164865
• Sum of all divisors σ(n): 26400533741568
• Sum of proper divisors (its aliquot sum) s(n): 12961742576703
• 13438791164865 is a deficient number, because the sum of its proper divisors (12961742576703) is less than itself. Its deficiency is 477048588162

Bases of 13438791164865

• Binary: 11000011100011110110010111111010001111000001₂
• Hexadecimal: 0xC38F65FA3C1
• Base-36: 4RHP1A37L

Squares and roots of 13438791164865

• 13438791164865 squared (13438791164865²) is 180601107972853583610468225
• 13438791164865 cubed (13438791164865³) is 2427060574190414649686613949855818914625
• The square root of 13438791164865 is 3665895.6838493099
• The cube root of 13438791164865 is 23774.9749700677

Scales and comparisons

• 13,438,791,164,865 seconds is equal to 427,311 years, 51 weeks, 3 days, 9 hours, 47 minutes, 45 seconds.
• To count from 1 to 13,438,791,164,865 would take you about one million, sixty-eight thousand, two hundred seventy-nine 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 13438791164865 cubic inches would be around 1981.2 feet tall.

Recreational maths with 13438791164865

• 13438791164865 backwards is 56846119783431
• The number of decimal digits it has is: 14
• The sum of 13438791164865's digits is 66
• More coming soon!