31505289472

Names of 31505289472

• Cardinal: 31505289472 can be written as Thirty-one billion, five hundred five million, two hundred eighty-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 3.1505289472 × 10¹⁰

Factors of 31505289472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3685

Divisors of 31505289472

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 16 32 53 64 106 128 212 256 424 829 848 1658 1696 2801 3316 3392 5602 6632 6784 11204 13264 13568 22408 26528 43937 44816 53056 87874 89632 106112 148453 175748 179264 212224 296906 351496 358528 593812 702992 717056 1187624 1405984 2322029 2375248 2811968 4644058 4750496 5623936 9288116 9500992 11247872 18576232 19001984 37152464 38003968 74304928 123067537 148609856 246135074 297219712 492270148 594439424 984540296 1969080592 3938161184 7876322368 15752644736 31505289472
• Sum of all divisors σ(n): 64174262040
• Sum of proper divisors (its aliquot sum) s(n): 32668972568
• 31505289472 is an abundant number, because the sum of its proper divisors (32668972568) is greater than itself. Its abundance is 1163683096

Bases of 31505289472

• Binary: 11101010101110111001001000100000000₂
• Hexadecimal: 0x755DC9100
• Base-36: EH1FOXS

Squares and roots of 31505289472

• 31505289472 squared (31505289472²) is 992583264714514038784
• 31505289472 cubed (31505289472³) is 31271623079893568231697754882048
• The square root of 31505289472 is 177497.2942667015
• The cube root of 31505289472 is 3158.3565625177

Scales and comparisons

• 31,505,289,472 seconds is equal to 1,001 years, 40 weeks, 13 hours, 17 minutes, 52 seconds.
• To count from 1 to 31,505,289,472 would take you about two thousand and three 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 31505289472 cubic inches would be around 263.2 feet tall.

Recreational maths with 31505289472

• 31505289472 backwards is 27498250513
• The number of decimal digits it has is: 11
• The sum of 31505289472's digits is 46
• More coming soon!