139978384

Names of 139978384

• Cardinal: 139978384 can be written as One hundred thirty-nine million, nine hundred seventy-eight thousand, three hundred eighty-four.

Scientific notation

• Scientific notation: 1.39978384 × 10⁸

Factors of 139978384

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 906

Divisors of 139978384

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 127 182 208 254 364 508 728 757 889 1016 1456 1514 1651 1778 2032 3028 3302 3556 5299 6056 6604 7112 9841 10598 11557 12112 13208 14224 19682 21196 23114 26416 39364 42392 46228 68887 78728 84784 92456 96139 137774 157456 184912 192278 275548 384556 551096 672973 769112 1102192 1249807 1345946 1538224 2499614 2691892 4999228 5383784 8748649 9998456 10767568 17497298 19996912 34994596 69989192 139978384
• Sum of all divisors σ(n): 336867328
• Sum of proper divisors (its aliquot sum) s(n): 196888944
• 139978384 is an abundant number, because the sum of its proper divisors (196888944) is greater than itself. Its abundance is 56910560

Bases of 139978384

• Binary: 1000010101111110011010010000₂
• Hexadecimal: 0x857E690
• Base-36: 2BC80G

Squares and roots of 139978384

• 139978384 squared (139978384²) is 19593947987251456
• 139978384 cubed (139978384³) is 2742729175435511412527104
• The square root of 139978384 is 11831.2460882191
• The cube root of 139978384 is 519.2226847733

Scales and comparisons

• 139,978,384 seconds is equal to 4 years, 23 weeks, 3 days, 2 hours, 53 minutes, 4 seconds.
• To count from 1 to 139,978,384 would take you about six 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 139978384 cubic inches would be around 43.3 feet tall.

Recreational maths with 139978384

• 139978384 backwards is 483879931
• 139978384 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 139978384's digits is 52
• More coming soon!