21461920744

Names of 21461920744

• Cardinal: 21461920744 can be written as Twenty-one billion, four hundred sixty-one million, nine hundred twenty thousand, seven hundred forty-four.

Scientific notation

• Scientific notation: 2.1461920744 × 10¹⁰

Factors of 21461920744

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 100

Divisors of 21461920744

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 8 11 19 22 31 37 38 44 62 74 76 88 124 148 152 209 248 296 341 361 407 418 589 682 703 722 814 836 961 1147 1178 1364 1406 1444 1628 1672 1922 2294 2356 2728 2812 2888 3256 3844 3971 4588 4712 5624 6479 6859 7688 7733 7942 9176 10571 11191 12617 12958 13357 13718 15466 15884 18259 21142 21793 22382 25234 25916 26714 27436 30932 31768 35557 36518 42284 43586 44764 50468 51832 53428 54872 61864 71114 73036 75449 84568 87172 89528 100936 106856 123101 142228 146072 146927 150898 174344 200849 212629 239723 246202 253783 284456 293854 301796 346921 391127 401698 414067 425258 479446 492404 507566 587708 603592 675583 693842 782254 803396 828134 850516 958892 984808 1015132 1175416 1351166 1387684 1564508 1606792 1656268 1701032 1917784 2030264 2338919 2702332 2775368 2791613 3129016 3312536 3816131 4554737 4677838 5404664 5583226 6591499 7431413 7632262 7867273 9109474 9355676 11166452 12836077 13182998 14862826 15264524 15734546 18218948 18711352 22332904 25672154 26365996 29725652 30529048 31469092 36437896 51344308 52731992 59451304 62938184 72506489 86540003 102688616 141196847 145012978 173080006 243885463 282393694 290025956 346160012 487770926 564787388 580051912 692320024 975541852 1129574776 1951083704 2682740093 5365480186 10730960372 21461920744
• Sum of all divisors σ(n): 49174948800
• Sum of proper divisors (its aliquot sum) s(n): 27713028056
• 21461920744 is an abundant number, because the sum of its proper divisors (27713028056) is greater than itself. Its abundance is 6251107312

Bases of 21461920744

• Binary: 10011111111001110101110101111101000₂
• Hexadecimal: 0x4FF3AEBE8
• Base-36: 9UXVG14

Squares and roots of 21461920744

• 21461920744 squared (21461920744²) is 460614042021737513536
• 21461920744 cubed (21461920744³) is 9885662063444016040681259190784
• The square root of 21461920744 is 146498.8762550757
• The cube root of 21461920744 is 2779.0062845901

Scales and comparisons

• 21,461,920,744 seconds is equal to 682 years, 21 weeks, 6 days, 20 hours, 39 minutes, 4 seconds.
• To count from 1 to 21,461,920,744 would take you about one thousand, three hundred sixty-four 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 21461920744 cubic inches would be around 231.6 feet tall.

Recreational maths with 21461920744

• 21461920744 backwards is 44702916412
• The number of decimal digits it has is: 11
• The sum of 21461920744's digits is 40
• More coming soon!