72128806865424

Names of 72128806865424

• Cardinal: 72128806865424 can be written as Seventy-two trillion, one hundred twenty-eight billion, eight hundred six million, eight hundred sixty-five thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 7.2128806865424 × 10¹³

Factors of 72128806865424

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1151

Divisors of 72128806865424

• Number of divisors d(n): 225
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 269 324 432 538 648 807 877 1076 1296 1614 1754 2152 2421 2631 3228 3508 4304 4842 5262 6456 7016 7263 7893 9684 10524 12912 14032 14526 15786 19368 21048 21789 23679 29052 31572 38736 42096 43578 47358 58104 63144 71037 72361 87156 94716 116208 126288 142074 144722 174312 189432 217083 235913 284148 289444 348624 378864 434166 471826 568296 578888 651249 707739 769129 868332 943652 1136592 1157776 1302498 1415478 1538258 1736664 1887304 1953747 2123217 2307387 2604996 2830956 3076516 3473328 3774608 3907494 4246434 4614774 5209992 5661912 5861241 6153032 6369651 6922161 7814988 8492868 9229548 10419984 11323824 11722482 12306064 12739302 13844322 15629976 16985736 18459096 19108953 20766483 23444964 25478604 27688644 31259952 33971472 36918192 38217906 41532966 46889928 50957208 55377288 62299449 63460597 76435812 83065932 93779856 101914416 110754576 124598898 126921194 152871624 166131864 190381791 206895701 249197796 253842388 305743248 332263728 380763582 413791402 498395592 507684776 571145373 620687103 761527164 827582804 996791184 1015369552 1142290746 1241374206 1523054328 1655165608 1713436119 1862061309 2284581492 2482748412 3046108656 3310331216 3426872238 3724122618 4569162984 4965496824 5140308357 5586183927 6853744476 7448245236 9138325968 9930993648 10280616714 11172367854 13707488952 14896490472 16758551781 20561233428 22344735708 27414977904 29792980944 33517103562 41122466856 44689471416 55654943569 67034207124 82244933712 89378942832 111309887138 134068414248 166964830707 222619774276 268136828496 333929661414 445239548552 500894492121 667859322828 890479097104 1001788984242 1335718645656 1502683476363 2003577968484 2671437291312 3005366952726 4007155936968 4508050429089 6010733905452 8014311873936 9016100858178 12021467810904 18032201716356 24042935621808 36064403432712 72128806865424
• Sum of all divisors σ(n): 209779845442167
• Sum of proper divisors (its aliquot sum) s(n): 137651038576743
• 72128806865424 is an abundant number, because the sum of its proper divisors (137651038576743) is greater than itself. Its abundance is 65522231711319

Bases of 72128806865424

• Binary: 10000011001100111001011111010010100101000010000₂
• Hexadecimal: 0x4199CBE94A10
• Base-36: PKFILAP00

Squares and roots of 72128806865424

• 72128806865424 squared (72128806865424²) is 5202564779829636356446699776
• 72128806865424 cubed (72128806865424³) is 375254790209188975823974071624876162945024
• 72128806865424 is a perfect square number. Its square root is 8492868
• The cube root of 72128806865424 is 41626.4699297455

Scales and comparisons

• 72,128,806,865,424 seconds is equal to 2,293,472 years, 49 weeks, 2 days, 12 hours, 50 minutes, 24 seconds.
• To count from 1 to 72,128,806,865,424 would take you about five million, seven hundred thirty-three thousand, six hundred eighty-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 72128806865424 cubic inches would be around 3468.9 feet tall.

Recreational maths with 72128806865424

• 72128806865424 backwards is 42456860882127
• The number of decimal digits it has is: 14
• The sum of 72128806865424's digits is 63
• More coming soon!