21012190472

Names of 21012190472

• Cardinal: 21012190472 can be written as Twenty-one billion, twelve million, one hundred ninety thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.1012190472 × 10¹⁰

Factors of 21012190472

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 495

Divisors of 21012190472

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 7 8 13 14 26 28 52 53 56 91 104 106 163 169 182 212 257 326 338 364 371 424 514 652 676 689 728 742 1028 1141 1183 1304 1352 1378 1484 1799 2056 2119 2282 2366 2756 2968 3341 3598 4238 4564 4732 4823 5512 6682 7196 8476 8639 8957 9128 9464 9646 13364 13621 14392 14833 16952 17278 17914 19292 23387 26728 27242 27547 29666 34556 35828 38584 41891 43433 46774 54484 55094 59332 60473 62699 69112 71656 83782 86866 93548 95347 108968 110188 112307 118664 120946 125398 167564 173732 177073 187096 190694 192829 220376 224614 241892 250796 293237 304031 335128 347464 354146 381388 385658 449228 483784 501592 544583 586474 608062 708292 762776 771316 786149 898456 1089166 1172948 1216124 1239511 1416584 1459991 1542632 1572298 2178332 2220223 2301949 2345896 2432248 2479022 2919982 3144596 3812081 4356664 4440446 4603898 4958044 5839964 6289192 7079579 7624162 8880892 9207796 9916088 10219937 11679928 14159158 15248324 15541561 16113643 17761784 18415592 20439874 28318316 28862899 30496648 31083122 32227286 40879748 49557053 56636632 57725798 62166244 64454572 81759496 99114106 115451596 124332488 128909144 198228212 202040293 230903192 375217687 396456424 404080586 750435374 808161172 1500870748 1616322344 2626523809 3001741496 5253047618 10506095236 21012190472
• Sum of all divisors σ(n): 50175262080
• Sum of proper divisors (its aliquot sum) s(n): 29163071608
• 21012190472 is an abundant number, because the sum of its proper divisors (29163071608) is greater than itself. Its abundance is 8150881136

Bases of 21012190472

• Binary: 10011100100011011001001010100001000₂
• Hexadecimal: 0x4E46C9508
• Base-36: 9NI45XK

Squares and roots of 21012190472

• 21012190472 squared (21012190472²) is 441512148431607582784
• 21012190472 cubed (21012190472³) is 9277137358546874594616916034048
• The square root of 21012190472 is 144955.8224839555
• The cube root of 21012190472 is 2759.4579237165

Scales and comparisons

• 21,012,190,472 seconds is equal to 668 years, 6 weeks, 2 days, 15 hours, 34 minutes, 32 seconds.
• To count from 1 to 21,012,190,472 would take you about one thousand, three hundred thirty-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 21012190472 cubic inches would be around 230 feet tall.

Recreational maths with 21012190472

• 21012190472 backwards is 27409121012
• The number of decimal digits it has is: 11
• The sum of 21012190472's digits is 29
• More coming soon!