21994687137942

Names of 21994687137942

• Cardinal: 21994687137942 can be written as Twenty-one trillion, nine hundred ninety-four billion, six hundred eighty-seven million, one hundred thirty-seven thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 2.1994687137942 × 10¹³

Factors of 21994687137942

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1085

Divisors of 21994687137942

• Number of divisors d(n): 132
• Complete list of divisors:
  1 2 3 6 9 18 27 54 81 162 243 379 486 701 729 758 1137 1402 1458 2103 2187 2274 3411 4206 4374 6309 6561 6822 10233 12618 13122 18927 19683 20466 30699 37854 39366 56781 59049 61398 92097 113562 118098 170343 184194 265679 276291 340686 491401 511029 531358 552582 797037 828873 982802 1022058 1474203 1533087 1594074 1657746 2391111 2486619 2948406 3066174 4422609 4599261 4782222 4973238 7173333 7459857 8845218 9198522 13267827 13797783 14346666 14919714 21519999 22379571 26535654 27595566 39803481 41393349 43039998 44759142 64559997 79606962 82786698 119410443 129119994 186240979 193679991 238820886 358231329 372481958 387359982 558722937 581039973 716462658 1074693987 1117445874 1162079946 1676168811 1743119919 2149387974 3224081961 3352337622 3486239838 5028506433 5229359757 6448163922 9672245883 10057012866 10458719514 15085519299 15688079271 19344491766 29016737649 30171038598 31376158542 45256557897 58033475298 90513115794 135769673691 271539347382 407309021073 814618042146 1221927063219 2443854126438 3665781189657 7331562379314 10997343568971 21994687137942
• Sum of all divisors σ(n): 49689224481660
• Sum of proper divisors (its aliquot sum) s(n): 27694537343718
• 21994687137942 is an abundant number, because the sum of its proper divisors (27694537343718) is greater than itself. Its abundance is 5699850205776

Bases of 21994687137942

• Binary: 101000000000100001001100000111000100010010110₂
• Hexadecimal: 0x140109838896
• Base-36: 7SO7WU3DI

Squares and roots of 21994687137942

• 21994687137942 squared (21994687137942²) is 483766262295951247335995364
• 21994687137942 cubed (21994687137942³) is 10640287587091034806042908824652940500888
• The square root of 21994687137942 is 4689849.3726282937
• The cube root of 21994687137942 is 28018.1375418619

Scales and comparisons

• 21,994,687,137,942 seconds is equal to 699,363 years, 6 days, 4 hours, 5 minutes, 42 seconds.
• To count from 1 to 21,994,687,137,942 would take you about one million, seven hundred forty-eight thousand, four hundred seven 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 21994687137942 cubic inches would be around 2334.8 feet tall.

Recreational maths with 21994687137942

• 21994687137942 backwards is 24973178649912
• The number of decimal digits it has is: 14
• The sum of 21994687137942's digits is 72
• More coming soon!