138899434960

Names of 138899434960

• Cardinal: 138899434960 can be written as One hundred thirty-eight billion, eight hundred ninety-nine million, four hundred thirty-four thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 1.3889943496 × 10¹¹

Factors of 138899434960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 12141590

Divisors of 138899434960

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 26 40 44 52 55 65 80 88 104 110 130 143 176 208 220 260 286 440 520 572 715 880 1040 1144 1430 2288 2860 5720 11440 12141559 24283118 48566236 60707795 97132472 121415590 133557149 157840267 194264944 242831180 267114298 315680534 485662360 534228596 631361068 667785745 789201335 971324720 1068457192 1262722136 1335571490 1578402670 1736242937 2136914384 2525444272 2671142980 3156805340 3472485874 5342285960 6313610680 6944971748 8681214685 10684571920 12627221360 13889943496 17362429370 27779886992 34724858740 69449717480 138899434960
• Sum of all divisors σ(n): 379399466880
• Sum of proper divisors (its aliquot sum) s(n): 240500031920
• 138899434960 is an abundant number, because the sum of its proper divisors (240500031920) is greater than itself. Its abundance is 101600596960

Bases of 138899434960

• Binary: 10000001010111000011010010110111010000₂
• Hexadecimal: 0x20570D2DD0
• Base-36: 1RT54XXS

Squares and roots of 138899434960

• 138899434960 squared (138899434960²) is 19293053032207270201600
• 138899434960 cubed (138899434960³) is 2679794164826904512606285287936000
• The square root of 138899434960 is 372692.1450205249
• The cube root of 138899434960 is 5178.8519163189

Scales and comparisons

• 138,899,434,960 seconds is equal to 4,416 years, 29 weeks, 5 days, 8 hours, 22 minutes, 40 seconds.
• To count from 1 to 138,899,434,960 would take you about eight thousand, eight hundred thirty-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 138899434960 cubic inches would be around 431.6 feet tall.

Recreational maths with 138899434960

• 138899434960 backwards is 069434998831
• The number of decimal digits it has is: 12
• The sum of 138899434960's digits is 64
• More coming soon!