138894912

Names of 138894912

• Cardinal: 138894912 can be written as One hundred thirty-eight million, eight hundred ninety-four thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.38894912 × 10⁸

Factors of 138894912

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 247

Divisors of 138894912

• Number of divisors d(n): 196
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 81 96 104 108 117 144 156 162 192 208 216 229 234 243 288 312 324 351 416 432 458 468 486 576 624 648 687 702 729 832 864 916 936 972 1053 1248 1296 1374 1404 1458 1728 1832 1872 1944 2061 2106 2496 2592 2748 2808 2916 2977 3159 3664 3744 3888 4122 4212 5184 5496 5616 5832 5954 6183 6318 7328 7488 7776 8244 8424 8931 9477 10992 11232 11664 11908 12366 12636 14656 15552 16488 16848 17862 18549 18954 21984 22464 23328 23816 24732 25272 26793 32976 33696 35724 37098 37908 43968 46656 47632 49464 50544 53586 55647 65952 67392 71448 74196 75816 80379 95264 98928 101088 107172 111294 131904 142896 148392 151632 160758 166941 190528 197856 202176 214344 222588 241137 285792 296784 303264 321516 333882 395712 428688 445176 482274 571584 593568 606528 643032 667764 723411 857376 890352 964548 1187136 1286064 1335528 1446822 1714752 1780704 1929096 2170233 2572128 2671056 2893644 3561408 3858192 4340466 5144256 5342112 5787288 7716384 8680932 10684224 11574576 15432768 17361864 23149152 34723728 46298304 69447456 138894912
• Sum of all divisors σ(n): 446971420
• Sum of proper divisors (its aliquot sum) s(n): 308076508
• 138894912 is an abundant number, because the sum of its proper divisors (308076508) is greater than itself. Its abundance is 169181596

Bases of 138894912

• Binary: 1000010001110101111001000000₂
• Hexadecimal: 0x8475E40
• Base-36: 2AP000

Squares and roots of 138894912

• 138894912 squared (138894912²) is 19291796579487744
• 138894912 cubed (138894912³) is 2679532388229851207958528
• The square root of 138894912 is 11785.3685559681
• The cube root of 138894912 is 517.8795703001

Scales and comparisons

• 138,894,912 seconds is equal to 4 years, 21 weeks, 4 days, 13 hours, 55 minutes, 12 seconds.
• To count from 1 to 138,894,912 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 138894912 cubic inches would be around 43.2 feet tall.

Recreational maths with 138894912

• 138894912 backwards is 219498831
• The number of decimal digits it has is: 9
• The sum of 138894912's digits is 45
• More coming soon!