21420466956

Names of 21420466956

• Cardinal: 21420466956 can be written as Twenty-one billion, four hundred twenty million, four hundred sixty-six thousand, nine hundred fifty-six.

Scientific notation

• Scientific notation: 2.1420466956 × 10¹⁰

Factors of 21420466956

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 486

Divisors of 21420466956

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 17 18 21 27 28 34 36 42 51 54 61 63 68 84 89 102 108 119 122 126 153 178 183 189 204 238 244 252 267 306 307 356 357 366 378 427 459 476 534 549 612 614 623 714 732 756 801 854 918 921 1037 1068 1071 1098 1228 1246 1281 1428 1513 1602 1647 1708 1836 1842 1869 2074 2142 2149 2196 2403 2492 2562 2763 3026 3111 3204 3213 3294 3684 3738 3843 4148 4284 4298 4539 4806 5124 5219 5429 5526 5607 6052 6222 6426 6447 6588 7259 7476 7686 8289 8596 9078 9333 9612 10438 10591 10858 11052 11214 11529 12444 12852 12894 13617 14518 15372 15657 16287 16578 16821 18156 18666 18727 19341 20876 21182 21716 21777 22428 23058 25788 27234 27323 27999 29036 31314 31773 32574 33156 33642 36533 37332 37454 38003 38682 40851 42364 43554 46116 46971 48861 54468 54646 55998 56181 58023 62628 63546 65148 65331 67284 73066 74908 76006 77364 81702 81969 87108 92293 93942 95319 97722 109292 109599 111996 112362 114009 116046 127092 130662 131089 140913 146132 146583 152012 163404 163938 168543 184586 187884 190638 191261 195444 195993 219198 224724 228018 232092 245907 261324 262178 276879 281826 285957 293166 318359 327876 328797 337086 342027 369172 381276 382522 391986 393267 438396 456036 464491 491814 505629 524356 553758 563652 571914 573783 586332 636718 646051 657594 674172 684054 737721 765044 783972 786534 830637 928982 955077 983628 986391 1011258 1026081 1107516 1143828 1147566 1179801 1273436 1292102 1315188 1368108 1393473 1475442 1573068 1661274 1666703 1721349 1857964 1910154 1938153 1972782 2022516 2052162 2228513 2295132 2359602 2491911 2584204 2786946 2865231 2950884 3251437 3322548 3333406 3442698 3539403 3820308 3876306 3945564 4104324 4180419 4457026 4719204 4983822 5000109 5164047 5573892 5730462 5814459 6502874 6666812 6685539 6885396 7078806 7752612 8360838 8595693 8914052 9754311 9967644 10000218 10328094 11460924 11628918 11666921 12541257 13005748 13371078 14157612 15000327 16721676 17191386 17443377 19508622 20000436 20056617 20656188 23257836 23333842 25082514 26742156 28333951 29262933 30000654 34382772 34886754 35000763 39017244 40113234 45000981 46667684 50165028 56667902 58525866 60001308 60169851 69773508 70001526 80226468 85001853 87788799 90001962 105002289 113335804 117051732 120339702 140003052 170003706 175577598 180003924 198337657 210004578 240679404 255005559 315006867 340007412 351155196 396675314 420009156 510011118 595012971 630013734 765016677 793350628 1020022236 1190025942 1260027468 1530033354 1785038913 2380051884 3060066708 3570077826 5355116739 7140155652 10710233478 21420466956
• Sum of all divisors σ(n): 69295564800
• Sum of proper divisors (its aliquot sum) s(n): 47875097844
• 21420466956 is an abundant number, because the sum of its proper divisors (47875097844) is greater than itself. Its abundance is 26454630888

Bases of 21420466956

• Binary: 10011111100110000100110001100001100₂
• Hexadecimal: 0x4FCC2630C
• Base-36: 9U96Y30

Squares and roots of 21420466956

• 21420466956 squared (21420466956²) is 458836404613087905936
• 21420466956 cubed (21420466956³) is 9828490043224495454225324250816
• The square root of 21420466956 is 146357.3262805795
• The cube root of 21420466956 is 2777.2159107087

Scales and comparisons

• 21,420,466,956 seconds is equal to 681 years, 5 weeks, 3 days, 1 hour, 42 minutes, 36 seconds.
• To count from 1 to 21,420,466,956 would take you about one thousand, three hundred sixty-two 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 21420466956 cubic inches would be around 231.4 feet tall.

Recreational maths with 21420466956

• 21420466956 backwards is 65966402412
• The number of decimal digits it has is: 11
• The sum of 21420466956's digits is 45
• More coming soon!