21207225984

Names of 21207225984

• Cardinal: 21207225984 can be written as Twenty-one billion, two hundred seven million, two hundred twenty-five thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.1207225984 × 10¹⁰

Factors of 21207225984

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1179

Divisors of 21207225984

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 31 32 42 48 56 62 64 84 93 96 112 124 128 168 186 192 217 224 248 307 336 372 384 434 448 496 614 651 672 744 829 868 896 921 992 1228 1302 1344 1488 1658 1736 1842 1984 2149 2456 2487 2604 2688 2976 3316 3472 3684 3968 4298 4912 4974 5208 5803 5952 6447 6632 6944 7368 8596 9517 9824 9948 10416 11606 11904 12894 13264 13888 14736 17192 17409 19034 19648 19896 20832 23212 25699 25788 26528 27776 28551 29472 34384 34818 38068 39296 39792 41664 46424 51398 51576 53056 57102 58944 66619 68768 69636 76136 77097 79584 83328 92848 102796 103152 106112 114204 117888 133238 137536 139272 152272 154194 159168 179893 185696 199857 205592 206304 228408 254503 266476 275072 278544 304544 308388 318336 359786 371392 399714 411184 412608 456816 509006 532952 539679 557088 609088 616776 719572 742784 763509 799428 822368 825216 913632 1018012 1065904 1079358 1114176 1218176 1233552 1439144 1527018 1598856 1644736 1781521 1827264 2036024 2131808 2158716 2228352 2467104 2878288 3054036 3197712 3289472 3563042 3654528 4072048 4263616 4317432 4934208 5344563 5756576 6108072 6395424 7126084 7889593 8144096 8527232 8634864 9868416 10689126 11513152 12216144 12790848 14252168 15779186 16288192 17269728 21378252 23026304 23668779 24432288 25581696 28504336 31558372 32576384 34539456 42756504 47337558 48864576 55227151 57008672 63116744 69078912 85513008 94675116 97729152 110454302 114017344 126233488 165681453 171026016 189350232 220908604 228034688 252466976 331362906 342052032 378700464 441817208 504933952 662725812 684104064 757400928 883634416 1009867904 1325451624 1514801856 1767268832 2650903248 3029603712 3534537664 5301806496 7069075328 10603612992 21207225984
• Sum of all divisors σ(n): 66752716800
• Sum of proper divisors (its aliquot sum) s(n): 45545490816
• 21207225984 is an abundant number, because the sum of its proper divisors (45545490816) is greater than itself. Its abundance is 24338264832

Bases of 21207225984

• Binary: 10011110000000011001001011010000000₂
• Hexadecimal: 0x4F00C9680
• Base-36: 9QQ8GAO

Squares and roots of 21207225984

• 21207225984 squared (21207225984²) is 449746433936444768256
• 21207225984 cubed (21207225984³) is 9537874259988310893939501563904
• The square root of 21207225984 is 145627.0098024401
• The cube root of 21207225984 is 2767.9694217389

Scales and comparisons

• 21,207,225,984 seconds is equal to 674 years, 16 weeks, 6 days, 6 minutes, 24 seconds.
• To count from 1 to 21,207,225,984 would take you about one thousand, three hundred forty-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 21207225984 cubic inches would be around 230.7 feet tall.

Recreational maths with 21207225984

• 21207225984 backwards is 48952270212
• 21207225984 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21207225984's digits is 42
• More coming soon!