21390164326944

Names of 21390164326944

• Cardinal: 21390164326944 can be written as Twenty-one trillion, three hundred ninety billion, one hundred sixty-four million, three hundred twenty-six thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 2.1390164326944 × 10¹³

Factors of 21390164326944

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 170034

Divisors of 21390164326944

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 72 84 96 98 112 126 144 147 168 196 224 252 288 294 336 392 441 504 588 672 784 882 1008 1176 1568 1764 2016 2352 3528 4704 7056 9439 14112 18878 28317 37756 56634 66073 75512 84951 113268 132146 151024 160583 169902 198219 226536 264292 302048 321166 339804 396438 453072 462511 481749 528584 594657 642332 679608 792876 906144 925022 963498 1057168 1124081 1189314 1284664 1359216 1387533 1445247 1585752 1850044 1926996 2114336 2248162 2378628 2569328 2718432 2775066 2890494 3171504 3372243 3700088 3853992 4162599 4496324 4757256 5138656 5550132 5780988 6343008 6744486 7400176 7707984 7868567 8325198 8992648 9514512 10116729 11100264 11561976 13488972 14800352 15415968 15737134 16650396 17985296 19029024 20233458 22200528 23123952 23605701 26977944 31474268 33300792 35970592 40466916 44401056 46247904 47211402 53955888 62948536 66601584 70817103 80933832 94422804 107911776 125897072 133203168 141634206 161867664 188845608 251794144 283268412 323735328 377691216 566536824 755382432 1133073648 1515742937 2266147296 3031485874 4547228811 6062971748 9094457622 10610200559 12125943496 13641686433 18188915244 21220401118 24251886992 27283372866 31830601677 36377830488 42440802236 48503773984 54566745732 63661203354 72755660976 74271403913 84881604472 95491805031 109133491464 127322406708 145511321952 148542807826 169763208944 190983610062 218266982928 222814211739 254644813416 297085615652 339526417888 381967220124 436533965856 445628423478 509289626832 594171231304 668442635217 763934440248 891256846956 1018579253664 1188342462608 1336885270434 1527868880496 1782513693912 2376684925216 2673770540868 3055737760992 3565027387824 5347541081736 7130054775648 10695082163472 21390164326944
• Sum of all divisors σ(n): 70767364711680
• Sum of proper divisors (its aliquot sum) s(n): 49377200384736
• 21390164326944 is an abundant number, because the sum of its proper divisors (49377200384736) is greater than itself. Its abundance is 27987036057792

Bases of 21390164326944

• Binary: 100110111010001001001001001010111101000100000₂
• Hexadecimal: 0x137449257A20
• Base-36: 7KYI7K940

Squares and roots of 21390164326944

• 21390164326944 squared (21390164326944²) is 457539129933667664524379136
• 21390164326944 cubed (21390164326944³) is 9786837175288133762706492627476916240384
• The square root of 21390164326944 is 4624950.1972393173
• The cube root of 21390164326944 is 27759.0568936187

Scales and comparisons

• 21,390,164,326,944 seconds is equal to 680,141 years, 3 weeks, 1 day, 9 hours, 2 minutes, 24 seconds.
• To count from 1 to 21,390,164,326,944 would take you about one million, seven hundred thousand, three hundred fifty-two 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 21390164326944 cubic inches would be around 2313.3 feet tall.

Recreational maths with 21390164326944

• 21390164326944 backwards is 44962346109312
• The number of decimal digits it has is: 14
• The sum of 21390164326944's digits is 54
• More coming soon!