21238539339426816

Names of 21238539339426816

• Cardinal: 21238539339426816 can be written as Twenty-one quadrillion, two hundred thirty-eight trillion, five hundred thirty-nine billion, three hundred thirty-nine million, four hundred twenty-six thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.1238539339426816 × 10¹⁶

Factors of 21238539339426816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 575031220

Divisors of 21238539339426816

• Number of divisors d(n): 176
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 256 264 352 384 512 528 704 768 1024 1056 1093 1408 1536 2112 2186 2816 3072 3279 4224 4372 5632 6558 8448 8744 11264 12023 13116 16896 17488 24046 26232 33792 34976 36069 48092 52464 69952 72138 96184 104928 139904 144276 192368 209856 279808 288552 384736 419712 559616 577104 769472 839424 1119232 1154208 1538944 1678848 2308416 3077888 3357696 4616832 6155776 9233664 12311552 18467328 36934656 575030111 1150060222 1725090333 2300120444 3450180666 4600240888 6325331221 6900361332 9200481776 12650662442 13800722664 18400963552 18975993663 25301324884 27601445328 36801927104 37951987326 50602649768 55202890656 73603854208 75903974652 101205299536 110405781312 147207708416 151807949304 202410599072 220811562624 294415416832 303615898608 404821198144 441623125248 588830833664 607231797216 628507911323 809642396288 883246250496 1214463594432 1257015822646 1619284792576 1766492500992 1885523733969 2428927188864 2514031645292 3238569585152 3771047467938 4857854377728 5028063290584 6477139170304 6913587024553 7542094935876 9715708755456 10056126581168 13827174049106 15084189871752 19431417510912 20112253162336 20740761073659 27654348098212 30168379743504 40224506324672 41481522147318 55308696196424 60336759487008 80449012649344 82963044294636 110617392392848 120673518974016 160898025298688 165926088589272 221234784785696 241347037948032 321796050597376 331852177178544 442469569571392 482694075896064 643592101194752 663704354357088 884939139142784 965388151792128 1327408708714176 1769878278285568 1930776303584256 2654817417428352 3539756556571136 5309634834856704 7079513113142272 10619269669713408 21238539339426816
• Sum of all divisors σ(n): 61811173601031168
• Sum of proper divisors (its aliquot sum) s(n): 40572634261604352
• 21238539339426816 is an abundant number, because the sum of its proper divisors (40572634261604352) is greater than itself. Its abundance is 19334094922177536

Bases of 21238539339426816

• Binary: 1001011011101000101011011001000110111111110110000000000₂
• Hexadecimal: 0x4B7456C8DFEC00
• Base-36: 5T4FM9ZUXHC

Squares and roots of 21238539339426816

• 21238539339426816 squared (21238539339426816²) is 451075553272380453734211419897856
• 21238539339426816 cubed (21238539339426816³) is 9580185883229168712154223027384683199152307306496
• The square root of 21238539339426816 is 145734482.3280571989
• The cube root of 21238539339426816 is 276933.1092612697

Scales and comparisons

• 21,238,539,339,426,816 seconds is equal to 675,319,855 years, 45 weeks, 4 days, 15 hours, 53 minutes, 36 seconds.
• To count from 1 to 21,238,539,339,426,816 would take you about two billion, twenty-five million, nine hundred fifty-nine thousand, five hundred sixty-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 21238539339426816 cubic inches would be around 23077.8 feet tall.

Recreational maths with 21238539339426816

• 21238539339426816 backwards is 61862493393583212
• The number of decimal digits it has is: 17
• The sum of 21238539339426816's digits is 75
• More coming soon!