21019152

Names of 21019152

• Cardinal: 21019152 can be written as Twenty-one million, nineteen thousand, one hundred fifty-two.

Scientific notation

• Scientific notation: 2.1019152 × 10⁷

Factors of 21019152

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 70

Divisors of 21019152

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 33 42 44 47 48 56 66 77 84 88 94 112 121 132 141 154 168 176 188 231 242 264 282 308 329 336 363 376 462 484 517 528 564 616 658 726 752 847 924 968 987 1034 1128 1232 1316 1331 1452 1551 1694 1848 1936 1974 2068 2256 2541 2632 2662 2904 3102 3388 3619 3696 3948 3993 4136 5082 5264 5324 5687 5808 6204 6776 7238 7896 7986 8272 9317 10164 10648 10857 11374 12408 13552 14476 15792 15972 17061 18634 20328 21296 21714 22748 24816 27951 28952 31944 34122 37268 39809 40656 43428 45496 55902 57904 62557 63888 68244 74536 79618 86856 90992 111804 119427 125114 136488 149072 159236 173712 187671 223608 238854 250228 272976 318472 375342 437899 447216 477708 500456 636944 750684 875798 955416 1000912 1313697 1501368 1751596 1910832 2627394 3002736 3503192 5254788 7006384 10509576 21019152
• Sum of all divisors σ(n): 69709824
• Sum of proper divisors (its aliquot sum) s(n): 48690672
• 21019152 is an abundant number, because the sum of its proper divisors (48690672) is greater than itself. Its abundance is 27671520

Bases of 21019152

• Binary: 1010000001011101000010000₂
• Hexadecimal: 0x140BA10
• Base-36: CIIHC

Squares and roots of 21019152

• 21019152 squared (21019152²) is 441804750799104
• 21019152 cubed (21019152³) is 9286361211368488439808
• The square root of 21019152 is 4584.6648732487
• The cube root of 21019152 is 275.9762634491

Scales and comparisons

• 21,019,152 seconds is equal to 34 weeks, 5 days, 6 hours, 39 minutes, 12 seconds.
• To count from 1 to 21,019,152 would take you about twenty-one hours!

  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 21019152 cubic inches would be around 23 feet tall.

Recreational maths with 21019152

• 21019152 backwards is 25191012
• 21019152 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21019152's digits is 21
• More coming soon!