7145712128

Names of 7145712128

• Cardinal: 7145712128 can be written as Seven billion, one hundred forty-five million, seven hundred twelve thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 7.145712128 × 10⁹

Factors of 7145712128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 446

Divisors of 7145712128

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 8 16 19 23 32 38 46 64 76 92 109 128 152 184 218 256 293 304 368 436 437 512 586 608 736 872 874 1172 1216 1472 1744 1748 2071 2344 2432 2507 2944 3488 3496 4142 4688 4864 5014 5567 5888 6739 6976 6992 8284 9376 9728 10028 11134 11776 13478 13952 13984 16568 18752 20056 22268 26956 27904 27968 31937 33136 37504 40112 44536 47633 53912 55808 55936 63874 66272 75008 80224 89072 95266 107824 111872 127748 128041 132544 150016 160448 178144 190532 215648 223744 255496 256082 265088 320896 356288 381064 431296 510992 512164 530176 606803 641792 712576 734551 762128 862592 1021984 1024328 1060352 1213606 1283584 1425152 1469102 1524256 1725184 2043968 2048656 2427212 2850304 2938204 3048512 3450368 4087936 4097312 4854424 5876408 6097024 8175872 8194624 9708848 11752816 12194048 13956469 16351744 16389248 19417696 23505632 24388096 27912938 32778496 38835392 47011264 55825876 65556992 77670784 94022528 111651752 155341568 188045056 223303504 310683136 376090112 446607008 893214016 1786428032 3572856064 7145712128
• Sum of all divisors σ(n): 15880233600
• Sum of proper divisors (its aliquot sum) s(n): 8734521472
• 7145712128 is an abundant number, because the sum of its proper divisors (8734521472) is greater than itself. Its abundance is 1588809344

Bases of 7145712128

• Binary: 110101001111010101110101000000000₂
• Hexadecimal: 0x1A9EAEA00
• Base-36: 3A6DERK

Squares and roots of 7145712128

• 7145712128 squared (7145712128²) is 51061201816246288384
• 7145712128 cubed (7145712128³) is 364868649088606730340534321152
• The square root of 7145712128 is 84532.3141053173
• The cube root of 7145712128 is 1926.1133383599

Scales and comparisons

• 7,145,712,128 seconds is equal to 227 years, 11 weeks, 2 minutes, 8 seconds.
• To count from 1 to 7,145,712,128 would take you about four hundred fifty-four 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 7145712128 cubic inches would be around 160.5 feet tall.

Recreational maths with 7145712128

• 7145712128 backwards is 8212175417
• 7145712128 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 7145712128's digits is 38
• More coming soon!