31138402806

Names of 31138402806

• Cardinal: 31138402806 can be written as Thirty-one billion, one hundred thirty-eight million, four hundred two thousand, eight hundred six.

Scientific notation

• Scientific notation: 3.1138402806 × 10¹⁰

Factors of 31138402806

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 29262

Divisors of 31138402806

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 378 567 971 1134 1942 2913 5826 6797 8739 13594 17478 20391 26217 28279 40782 52434 56558 61173 78651 84837 122346 157302 169674 183519 197953 254511 367038 395906 509022 550557 593859 763533 1101114 1187718 1527066 1781577 2290599 3563154 4581198 5344731 10689462 16034193 27458909 32068386 54917818 82376727 164753454 192212363 247130181 384424726 494260362 576637089 741390543 1153274178 1482781086 1729911267 2224171629 3459822534 4448343258 5189733801 10379467602 15569201403 31138402806
• Sum of all divisors σ(n): 79825616640
• Sum of proper divisors (its aliquot sum) s(n): 48687213834
• 31138402806 is an abundant number, because the sum of its proper divisors (48687213834) is greater than itself. Its abundance is 17548811028

Bases of 31138402806

• Binary: 11100111111111111100101000111110110₂
• Hexadecimal: 0x73FFE51F6
• Base-36: EAZ01DI

Squares and roots of 31138402806

• 31138402806 squared (31138402806²) is 969600129308708673636
• 31138402806 cubed (31138402806³) is 30191799387164257003383760622616
• The square root of 31138402806 is 176460.7684614345
• The cube root of 31138402806 is 3146.0487218823

Scales and comparisons

• 31,138,402,806 seconds is equal to 990 years, 5 weeks, 3 days, 4 hours, 20 minutes, 6 seconds.
• To count from 1 to 31,138,402,806 would take you about one thousand, nine hundred eighty 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 31138402806 cubic inches would be around 262.2 feet tall.

Recreational maths with 31138402806

• 31138402806 backwards is 60820483113
• The number of decimal digits it has is: 11
• The sum of 31138402806's digits is 36
• More coming soon!