21358283744

Names of 21358283744

• Cardinal: 21358283744 can be written as Twenty-one billion, three hundred fifty-eight million, two hundred eighty-three thousand, seven hundred forty-four.

Scientific notation

• Scientific notation: 2.1358283744 × 10¹⁰

Factors of 21358283744

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 304

Divisors of 21358283744

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 7 8 14 16 17 28 32 34 37 56 68 74 112 119 136 148 224 238 241 259 272 289 296 476 482 518 544 578 592 629 952 964 1036 1156 1184 1258 1369 1687 1904 1928 2023 2072 2312 2516 2738 3374 3808 3856 4046 4097 4144 4403 4624 5032 5476 6748 7712 8092 8194 8288 8806 8917 9248 9583 10064 10693 10952 13496 16184 16388 17612 17834 19166 20128 21386 21904 23273 26992 28679 32368 32776 35224 35668 38332 42772 43808 46546 53984 57358 62419 64736 65552 69649 70448 71336 74851 76664 85544 93092 114716 124838 131104 139298 140896 142672 149702 151589 153328 162911 171088 186184 229432 249676 278596 285344 299404 303178 306656 325822 329929 342176 372368 395641 458864 487543 499352 557192 598808 606356 651644 659858 744736 791282 917728 975086 998704 1061123 1114384 1197616 1212712 1303288 1319716 1582564 1950172 1997408 2122246 2228768 2309503 2395232 2425424 2577013 2606576 2639432 2769487 3165128 3900344 4244492 4619006 4850848 5154026 5213152 5278864 5538974 5608793 6330256 7800688 8488984 9238012 10308052 10557728 11077948 11217586 12660512 15601376 16977968 18039091 18476024 20616104 22155896 22435172 33955936 36078182 36952048 39261551 41232208 44311792 44870344 72156364 73904096 78523102 82464416 88623584 89740688 95349481 144312728 157046204 179481376 190698962 288625456 314092408 381397924 577250912 628184816 667446367 762795848 1256369632 1334892734 1525591696 2669785468 3051183392 5339570936 10679141872 21358283744
• Sum of all divisors σ(n): 52683955632
• Sum of proper divisors (its aliquot sum) s(n): 31325671888
• 21358283744 is an abundant number, because the sum of its proper divisors (31325671888) is greater than itself. Its abundance is 9967388144

Bases of 21358283744

• Binary: 10011111001000011011000101111100000₂
• Hexadecimal: 0x4F90D8BE0
• Base-36: 9T8657K

Squares and roots of 21358283744

• 21358283744 squared (21358283744²) is 456176284489214657536
• 21358283744 cubed (21358283744³) is 9743142521404312763377675894784
• The square root of 21358283744 is 146144.7356013893
• The cube root of 21358283744 is 2774.5259041927

Scales and comparisons

• 21,358,283,744 seconds is equal to 679 years, 6 weeks, 4 days, 8 hours, 35 minutes, 44 seconds.
• To count from 1 to 21,358,283,744 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 21358283744 cubic inches would be around 231.2 feet tall.

Recreational maths with 21358283744

• 21358283744 backwards is 44738285312
• The number of decimal digits it has is: 11
• The sum of 21358283744's digits is 47
• More coming soon!