21451538304

Names of 21451538304

• Cardinal: 21451538304 can be written as Twenty-one billion, four hundred fifty-one million, five hundred thirty-eight thousand, three hundred four.

Scientific notation

• Scientific notation: 2.1451538304 × 10¹⁰

Factors of 21451538304

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 245

Divisors of 21451538304

• Number of divisors d(n): 288
• 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 64 72 84 96 98 112 126 128 144 147 168 192 196 224 233 252 288 294 336 343 384 392 441 448 466 504 576 588 672 686 699 784 882 896 932 1008 1029 1152 1176 1344 1372 1398 1568 1631 1764 1864 2016 2058 2097 2352 2688 2744 2796 3087 3136 3262 3528 3728 4032 4116 4194 4704 4893 5488 5592 6174 6272 6524 7056 7456 8064 8232 8388 9408 9786 10976 11184 11417 12348 13048 14112 14679 14912 16464 16776 18816 19572 21952 22368 22834 24696 26096 28224 29358 29824 32928 33552 34251 39144 43904 44736 45668 49392 52192 54289 56448 58716 65856 67104 68502 78288 79919 89472 91336 98784 102753 104384 108578 117432 131712 134208 137004 156576 159838 162867 182672 197568 205506 208768 217156 234864 239757 268416 274008 313152 319676 325734 365344 380023 395136 411012 434312 469728 479514 488601 548016 626304 639352 651468 719271 730688 760046 822024 868624 939456 959028 977202 1096032 1140069 1278704 1302936 1438542 1461376 1520092 1644048 1737248 1878912 1918056 1954404 2192064 2280138 2557408 2605872 2660161 2877084 3040184 3288096 3420207 3474496 3836112 3908808 4384128 4560276 5114816 5211744 5320322 5754168 6080368 6576192 6840414 6948992 7672224 7817616 7980483 9120552 10229632 10423488 10640644 11508336 12160736 13152384 13680828 15344448 15635232 15960966 18241104 18621127 20846976 21281288 23016672 23941449 24321472 27361656 30688896 31270464 31921932 36482208 37242254 42562576 46033344 47882898 48642944 54723312 55863381 62540928 63843864 72964416 74484508 85125152 92066688 95765796 109446624 111726762 127687728 145928832 148969016 167590143 170250304 191531592 218893248 223453524 255375456 297938032 335180286 340500608 383063184 437786496 446907048 510750912 595876064 670360572 766126368 893814096 1021501824 1191752128 1340721144 1532252736 1787628192 2383504256 2681442288 3064505472 3575256384 5362884576 7150512768 10725769152 21451538304
• Sum of all divisors σ(n): 72297498000
• Sum of proper divisors (its aliquot sum) s(n): 50845959696
• 21451538304 is an abundant number, because the sum of its proper divisors (50845959696) is greater than itself. Its abundance is 29394421392

Bases of 21451538304

• Binary: 10011111110100111000111111110000000₂
• Hexadecimal: 0x4FE9C7F80
• Base-36: 9UROWW0

Squares and roots of 21451538304

• 21451538304 squared (21451538304²) is 460168495607979196416
• 21451538304 cubed (21451538304³) is 9871322109828621499952963518464
• The square root of 21451538304 is 146463.4367478791
• The cube root of 21451538304 is 2778.5580873663

Scales and comparisons

• 21,451,538,304 seconds is equal to 682 years, 4 weeks, 5 days, 16 hours, 38 minutes, 24 seconds.
• To count from 1 to 21,451,538,304 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 21451538304 cubic inches would be around 231.5 feet tall.

Recreational maths with 21451538304

• 21451538304 backwards is 40383515412
• 21451538304 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21451538304's digits is 36
• More coming soon!