139838157680

Names of 139838157680

• Cardinal: 139838157680 can be written as One hundred thirty-nine billion, eight hundred thirty-eight million, one hundred fifty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.3983815768 × 10¹¹

Factors of 139838157680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10576

Divisors of 139838157680

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 169 208 260 338 520 676 845 1040 1093 1352 1690 2186 2704 3380 4372 5465 6760 8744 9463 10930 13520 14209 17488 18926 21860 28418 37852 43720 47315 56836 71045 75704 87440 94630 113672 123019 142090 151408 184717 189260 227344 246038 284180 369434 378520 492076 568360 615095 738868 757040 923585 984152 1136720 1230190 1477736 1599247 1847170 1968304 2460380 2955472 3198494 3694340 4920760 6396988 7388680 7996235 9841520 10343059 12793976 14777360 15992470 20686118 25587952 31984940 41372236 51715295 63969880 82744472 103430590 127939760 134459767 165488944 206861180 268919534 413722360 537839068 672298835 827444720 1075678136 1344597670 1747976971 2151356272 2689195340 3495953942 5378390680 6991907884 8739884855 10756781360 13983815768 17479769710 27967631536 34959539420 69919078840 139838157680
• Sum of all divisors σ(n): 352416381408
• Sum of proper divisors (its aliquot sum) s(n): 212578223728
• 139838157680 is an abundant number, because the sum of its proper divisors (212578223728) is greater than itself. Its abundance is 72740066048

Bases of 139838157680

• Binary: 10000010001111000000001111001101110000₂
• Hexadecimal: 0x208F00F370
• Base-36: 1S8O110W

Squares and roots of 139838157680

• 139838157680 squared (139838157680²) is 19554710343336542982400
• 139838157680 cubed (139838157680³) is 2734494668378222434878948664832000
• The square root of 139838157680 is 373949.4052408695
• The cube root of 139838157680 is 5190.4924605997

Scales and comparisons

• 139,838,157,680 seconds is equal to 4,446 years, 21 weeks, 6 days, 4 hours, 41 minutes, 20 seconds.
• To count from 1 to 139,838,157,680 would take you about eight thousand, eight hundred ninety-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 139838157680 cubic inches would be around 432.5 feet tall.

Recreational maths with 139838157680

• 139838157680 backwards is 086751838931
• The number of decimal digits it has is: 12
• The sum of 139838157680's digits is 59
• More coming soon!