21213792992

Names of 21213792992

• Cardinal: 21213792992 can be written as Twenty-one billion, two hundred thirteen million, seven hundred ninety-two thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 2.1213792992 × 10¹⁰

Factors of 21213792992

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 166

Divisors of 21213792992

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 7 8 14 16 17 28 32 34 56 67 68 73 112 119 134 136 146 224 238 268 272 289 292 469 476 511 536 544 578 584 938 952 1022 1072 1139 1156 1168 1241 1876 1904 2023 2044 2144 2278 2312 2336 2482 3752 3808 4046 4088 4489 4556 4624 4891 4964 7504 7973 8092 8176 8687 8978 9112 9248 9782 9928 15008 15946 16184 16352 17374 17956 18224 19363 19564 19856 21097 31423 31892 32368 34237 34748 35912 36448 38726 39128 39712 42194 62846 63784 64736 68474 69496 71824 76313 77452 78256 83147 84388 125692 127568 135541 136948 138992 143648 147679 152626 154904 156512 166294 168776 251384 255136 271082 273896 277984 295358 305252 309808 327697 332588 337552 502768 534191 542164 547792 582029 590716 610504 619616 655394 665176 675104 1005536 1068382 1084328 1095584 1164058 1181432 1221008 1297321 1310788 1330352 1413499 2136764 2168656 2293879 2328116 2362864 2442016 2594642 2621576 2660704 2826998 4273528 4337312 4587758 4656232 4725728 5189284 5243152 5570849 5653996 8547056 9081247 9175516 9312464 9894493 10378568 10486304 11141698 11307992 17094112 18162494 18351032 18624928 19788986 20757136 22283396 22615984 36324988 36702064 38995943 39577972 41514272 44566792 45231968 72649976 73404128 77991886 79155944 89133584 94704433 145299952 155983772 158311888 178267168 189408866 290599904 311967544 316623776 378817732 623935088 662931031 757635464 1247870176 1325862062 1515270928 2651724124 3030541856 5303448248 10606896496 21213792992
• Sum of all divisors σ(n): 52177066704
• Sum of proper divisors (its aliquot sum) s(n): 30963273712
• 21213792992 is an abundant number, because the sum of its proper divisors (30963273712) is greater than itself. Its abundance is 9749480720

Bases of 21213792992

• Binary: 10011110000011100001100101011100000₂
• Hexadecimal: 0x4F070CAE0
• Base-36: 9QU57FK

Squares and roots of 21213792992

• 21213792992 squared (21213792992²) is 450025013107428312064
• 21213792992 cubed (21213792992³) is 9546737469283070869605672255488
• The square root of 21213792992 is 145649.5554129843
• The cube root of 21213792992 is 2768.2551011173

Scales and comparisons

• 21,213,792,992 seconds is equal to 674 years, 27 weeks, 5 days, 16 minutes, 32 seconds.
• To count from 1 to 21,213,792,992 would take you about one thousand, three hundred forty-nine 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 21213792992 cubic inches would be around 230.7 feet tall.

Recreational maths with 21213792992

• 21213792992 backwards is 29929731212
• The number of decimal digits it has is: 11
• The sum of 21213792992's digits is 47
• More coming soon!