72987936489

Names of 72987936489

• Cardinal: 72987936489 can be written as Seventy-two billion, nine hundred eighty-seven million, nine hundred thirty-six thousand, four hundred eighty-nine.

Scientific notation

• Scientific notation: 7.2987936489 × 10¹⁰

Factors of 72987936489

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 977

Divisors of 72987936489

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 9 13 23 27 39 61 69 117 169 183 207 299 351 507 549 621 793 877 897 1403 1521 1647 2197 2379 2631 2691 3887 4209 4563 6591 7137 7893 8073 10309 11401 11661 12627 18239 19773 20171 21411 23679 30927 34203 34983 37881 50531 53497 54717 59319 60513 92781 102609 104949 134017 148213 151593 160491 164151 181539 237107 262223 278343 307827 402051 444639 454779 481473 492453 544617 695461 711321 786669 1206153 1230431 1333917 1364337 1444419 1926769 2086383 2133963 2360007 3082391 3408899 3618459 3691293 4001751 5780307 6259149 6401889 7080021 9040993 9247173 10226697 11073879 15995603 17340921 18777447 27122979 27741519 30680091 33221637 44315687 47986809 52022763 81368937 83224557 92040273 117532909 132947061 143960427 207942839 244106811 352598727 398841183 431881281 623828517 1057796181 1196523549 1871485551 2703256907 3173388543 5614456653 8109770721 24329312163 72987936489
• Sum of all divisors σ(n): 124375372800
• Sum of proper divisors (its aliquot sum) s(n): 51387436311
• 72987936489 is a deficient number, because the sum of its proper divisors (51387436311) is less than itself. Its deficiency is 21600500178

Bases of 72987936489

• Binary: 1000011111110011010111000011011101001₂
• Hexadecimal: 0x10FE6B86E9
• Base-36: XJ34S89

Squares and roots of 72987936489

• 72987936489 squared (72987936489²) is 5327238872922297647121
• 72987936489 cubed (72987936489³) is 388824172518584602500021681698169
• The square root of 72987936489 is 270162.7962710631
• The cube root of 72987936489 is 4179.1089667837

Scales and comparisons

• 72,987,936,489 seconds is equal to 2,320 years, 41 weeks, 18 hours, 48 minutes, 9 seconds.
• To count from 1 to 72,987,936,489 would take you about four thousand, six hundred forty-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 72987936489 cubic inches would be around 348.3 feet tall.

Recreational maths with 72987936489

• 72987936489 backwards is 98463978927
• The number of decimal digits it has is: 11
• The sum of 72987936489's digits is 72
• More coming soon!