21203997264

Names of 21203997264

• Cardinal: 21203997264 can be written as Twenty-one billion, two hundred three million, nine hundred ninety-seven thousand, two hundred sixty-four.

Scientific notation

• Scientific notation: 2.1203997264 × 10¹⁰

Factors of 21203997264

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 10655

Divisors of 21203997264

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 36 38 48 54 57 72 76 81 108 114 144 152 162 171 216 228 243 304 324 342 432 456 486 513 648 684 729 912 972 1026 1296 1368 1458 1539 1944 2052 2187 2736 2916 3078 3888 4104 4374 4617 5832 6156 6561 8208 8748 9234 10631 11664 12312 13122 13851 17496 18468 21262 24624 26244 27702 31893 34992 36936 41553 42524 52488 55404 63786 73872 83106 85048 95679 104976 110808 124659 127572 166212 170096 191358 201989 221616 249318 255144 287037 332424 382716 403978 498636 510288 574074 605967 664848 765432 807956 861111 997272 1148148 1211934 1530864 1615912 1722222 1817901 1994544 2296296 2423868 2583333 3231824 3444444 3635802 4592592 4847736 5166666 5453703 6888888 7271604 7749999 9695472 10333332 10907406 13777776 14543208 15499998 16361109 20666664 21814812 23249997 29086416 30999996 32722218 41333328 43629624 46499994 49083327 61999992 65444436 69749991 87259248 92999988 98166654 123999984 130888872 139499982 147249981 185999976 196333308 261777744 278999964 294499962 371999952 392666616 441749943 557999928 588999924 785333232 883499886 1115999856 1177999848 1325249829 1766999772 2355999696 2650499658 3533999544 5300999316 7067999088 10601998632 21203997264
• Sum of all divisors σ(n): 64870297440
• Sum of proper divisors (its aliquot sum) s(n): 43666300176
• 21203997264 is an abundant number, because the sum of its proper divisors (43666300176) is greater than itself. Its abundance is 22462302912

Bases of 21203997264

• Binary: 10011101111110110110101001001010000₂
• Hexadecimal: 0x4EFDB5250
• Base-36: 9QOB900

Squares and roots of 21203997264

• 21203997264 squared (21203997264²) is 449609499971719485696
• 21203997264 cubed (21203997264³) is 9533518607268748052073471135744
• The square root of 21203997264 is 145615.9237995625
• The cube root of 21203997264 is 2767.8289436487

Scales and comparisons

• 21,203,997,264 seconds is equal to 674 years, 11 weeks, 3 days, 15 hours, 14 minutes, 24 seconds.
• To count from 1 to 21,203,997,264 would take you about one thousand, three hundred forty-eight 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 21203997264 cubic inches would be around 230.7 feet tall.

Recreational maths with 21203997264

• 21203997264 backwards is 46279930212
• The number of decimal digits it has is: 11
• The sum of 21203997264's digits is 45
• More coming soon!