21355319952

Names of 21355319952

• Cardinal: 21355319952 can be written as Twenty-one billion, three hundred fifty-five million, three hundred nineteen thousand, nine hundred fifty-two.

Scientific notation

• Scientific notation: 2.1355319952 × 10¹⁰

Factors of 21355319952

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1637

Divisors of 21355319952

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 36 38 48 54 57 72 76 108 114 144 152 171 216 228 304 342 432 456 513 684 912 1026 1368 1613 2052 2736 3226 4104 4839 6452 8208 9678 12904 14517 19356 25808 29034 30647 38712 43551 58068 61294 77424 87102 91941 116136 122588 174204 183882 232272 245176 275823 348408 367764 490352 551646 696816 735528 827469 1103292 1471056 1654938 2206584 2601769 3309876 4413168 5203538 6619752 7805307 10407076 13239504 15610614 20814152 23415921 31221228 41628304 46831842 49433611 62442456 70247763 93663684 98867222 124884912 140495526 148300833 187327368 197734444 280991052 296601666 374654736 395468888 444902499 561982104 593203332 790937776 889804998 1123964208 1186406664 1334707497 1779609996 2372813328 2669414994 3559219992 5338829988 7118439984 10677659976 21355319952
• Sum of all divisors σ(n): 64563898400
• Sum of proper divisors (its aliquot sum) s(n): 43208578448
• 21355319952 is an abundant number, because the sum of its proper divisors (43208578448) is greater than itself. Its abundance is 21853258496

Bases of 21355319952

• Binary: 10011111000111000000101001010010000₂
• Hexadecimal: 0x4F8E05290
• Base-36: 9T6EMC0

Squares and roots of 21355319952

• 21355319952 squared (21355319952²) is 456049690252289282304
• 21355319952 cubed (21355319952³) is 9739087049348133224062371729408
• The square root of 21355319952 is 146134.5953291007
• The cube root of 21355319952 is 2774.3975621379

Scales and comparisons

• 21,355,319,952 seconds is equal to 679 years, 1 week, 5 days, 1 hour, 19 minutes, 12 seconds.
• To count from 1 to 21,355,319,952 would take you about one thousand, three hundred fifty-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 21355319952 cubic inches would be around 231.2 feet tall.

Recreational maths with 21355319952

• 21355319952 backwards is 25991355312
• The number of decimal digits it has is: 11
• The sum of 21355319952's digits is 45
• More coming soon!