125209990728

Names of 125209990728

• Cardinal: 125209990728 can be written as One hundred twenty-five billion, two hundred nine million, nine hundred ninety thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.25209990728 × 10¹¹

Factors of 125209990728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 52066

Divisors of 125209990728

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 19 24 27 36 38 54 57 72 76 108 114 152 171 216 228 342 456 513 593 684 1026 1186 1368 1779 2052 2372 3558 4104 4744 5337 7116 10674 11267 14232 16011 21348 22534 32022 33801 42696 45068 51449 64044 67602 90136 101403 102898 128088 135204 154347 202806 205796 270408 304209 308694 405612 411592 463041 608418 617388 811224 926082 977531 1216836 1234776 1389123 1852164 1955062 2433672 2778246 2932593 3704328 3910124 5556492 5865186 7820248 8797779 11112984 11730372 17595558 23460744 26393337 30509257 35191116 52786674 61018514 70382232 91527771 105573348 122037028 183055542 211146696 244074056 274583313 366111084 549166626 579675883 732222168 823749939 1098333252 1159351766 1647499878 1739027649 2196666504 2318703532 3294999756 3478055298 4637407064 5217082947 6589999512 6956110596 10434165894 13912221192 15651248841 20868331788 31302497682 41736663576 62604995364 125209990728
• Sum of all divisors σ(n): 366735600000
• Sum of proper divisors (its aliquot sum) s(n): 241525609272
• 125209990728 is an abundant number, because the sum of its proper divisors (241525609272) is greater than itself. Its abundance is 116315618544

Bases of 125209990728

• Binary: 1110100100111000110001101011001001000₂
• Hexadecimal: 0x1D2718D648
• Base-36: 1LIQSN60

Squares and roots of 125209990728

• 125209990728 squared (125209990728²) is 15677541778105845969984
• 125209990728 cubed (125209990728³) is 1962984860674465607304292806308352
• The square root of 125209990728 is 353850.2377108147
• The cube root of 125209990728 is 5002.7983099735

Scales and comparisons

• 125,209,990,728 seconds is equal to 3,981 years, 15 weeks, 16 hours, 58 minutes, 48 seconds.
• To count from 1 to 125,209,990,728 would take you about seven thousand, nine hundred sixty-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 125209990728 cubic inches would be around 416.9 feet tall.

Recreational maths with 125209990728

• 125209990728 backwards is 827099902521
• 125209990728 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 125209990728's digits is 54
• More coming soon!