21124647072

Names of 21124647072

• Cardinal: 21124647072 can be written as Twenty-one billion, one hundred twenty-four million, six hundred forty-seven thousand and seventy-two.

Scientific notation

• Scientific notation: 2.1124647072 × 10¹⁰

Factors of 21124647072

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 19319

Divisors of 21124647072

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 47 48 54 72 81 94 96 108 141 144 162 188 216 243 282 288 324 376 423 432 486 564 648 729 752 846 864 972 1128 1269 1296 1458 1504 1692 1944 2256 2538 2592 2916 3384 3807 3888 4512 5076 5832 6768 7614 7776 10152 11421 11664 13536 15228 19267 20304 22842 23328 30456 34263 38534 40608 45684 57801 60912 68526 77068 91368 115602 121824 137052 154136 173403 182736 231204 274104 308272 346806 365472 462408 520209 548208 616544 693612 905549 924816 1040418 1096416 1387224 1560627 1811098 1849632 2080836 2716647 2774448 3121254 3622196 4161672 4681881 5433294 5548896 6242508 7244392 8149941 8323344 9363762 10866588 12485016 14045643 14488784 16299882 16646688 18727524 21733176 24449823 24970032 28091286 28977568 32599764 37455048 43466352 48899646 49940064 56182572 65199528 73349469 74910096 86932704 97799292 112365144 130399056 146698938 149820192 195598584 220048407 224730288 260798112 293397876 391197168 440096814 449460576 586795752 660145221 782394336 880193628 1173591504 1320290442 1760387256 2347183008 2640580884 3520774512 5281161768 7041549024 10562323536 21124647072
• Sum of all divisors σ(n): 63685210176
• Sum of proper divisors (its aliquot sum) s(n): 42560563104
• 21124647072 is an abundant number, because the sum of its proper divisors (42560563104) is greater than itself. Its abundance is 21435916032

Bases of 21124647072

• Binary: 10011101011001000001000100010100000₂
• Hexadecimal: 0x4EB2088A0
• Base-36: 9PD2I00

Squares and roots of 21124647072

• 21124647072 squared (21124647072²) is 446250713916558173184
• 21124647072 cubed (21124647072³) is 9426888837115330265469054517248
• The square root of 21124647072 is 145343.2044231859
• The cube root of 21124647072 is 2764.3720122021

Scales and comparisons

• 21,124,647,072 seconds is equal to 671 years, 36 weeks, 2 days, 5 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,124,647,072 would take you about one thousand, three hundred forty-three 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 21124647072 cubic inches would be around 230.4 feet tall.

Recreational maths with 21124647072

• 21124647072 backwards is 27074642112
• 21124647072 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21124647072's digits is 36
• More coming soon!