138976992

Names of 138976992

• Cardinal: 138976992 can be written as One hundred thirty-eight million, nine hundred seventy-six thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 1.38976992 × 10⁸

Factors of 138976992

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2112

Divisors of 138976992

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 32 33 36 42 44 48 54 56 63 66 72 77 84 88 96 99 108 112 126 132 144 154 168 176 189 198 216 224 231 252 264 288 297 308 336 352 378 396 432 462 504 528 594 616 672 693 756 792 864 924 1008 1056 1188 1232 1386 1512 1584 1848 2016 2079 2089 2376 2464 2772 3024 3168 3696 4158 4178 4752 5544 6048 6267 7392 8316 8356 9504 11088 12534 14623 16632 16712 18801 22176 22979 25068 29246 33264 33424 37602 43869 45958 50136 56403 58492 66528 66848 68937 75204 87738 91916 100272 112806 116984 131607 137874 150408 160853 175476 183832 200544 206811 225612 233968 263214 275748 300816 321706 350952 367664 394821 413622 451224 467936 482559 526428 551496 601632 620433 643412 701904 735328 789642 827244 902448 965118 1052856 1102992 1240866 1286824 1403808 1447677 1579284 1654488 1804896 1930236 2105712 2205984 2481732 2573648 2895354 3158568 3308976 3860472 4211424 4343031 4963464 5147296 5790708 6317136 6617952 7720944 8686062 9926928 11581416 12634272 15441888 17372124 19853856 23162832 34744248 46325664 69488496 138976992
• Sum of all divisors σ(n): 505612800
• Sum of proper divisors (its aliquot sum) s(n): 366635808
• 138976992 is an abundant number, because the sum of its proper divisors (366635808) is greater than itself. Its abundance is 227658816

Bases of 138976992

• Binary: 1000010010001001111011100000₂
• Hexadecimal: 0x8489EE0
• Base-36: 2AQRC0

Squares and roots of 138976992

• 138976992 squared (138976992²) is 19314604305368064
• 138976992 cubed (138976992³) is 2684285608030302987583488
• The square root of 138976992 is 11788.8503256255
• The cube root of 138976992 is 517.9815639201

Scales and comparisons

• 138,976,992 seconds is equal to 4 years, 21 weeks, 5 days, 12 hours, 43 minutes, 12 seconds.
• To count from 1 to 138,976,992 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 138976992 cubic inches would be around 43.2 feet tall.

Recreational maths with 138976992

• 138976992 backwards is 299679831
• 138976992 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138976992's digits is 54
• More coming soon!