21102499440

Names of 21102499440

• Cardinal: 21102499440 can be written as Twenty-one billion, one hundred two million, four hundred ninety-nine thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.110249944 × 10¹⁰

Factors of 21102499440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3359

Divisors of 21102499440

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 33 36 40 44 45 48 55 60 66 72 80 88 90 99 110 120 132 144 165 176 180 198 220 240 264 330 360 396 440 495 528 660 720 792 880 990 1320 1321 1584 1980 2017 2640 2642 3960 3963 4034 5284 6051 6605 7920 7926 8068 10085 10568 11889 12102 13210 14531 15852 16136 18153 19815 20170 21136 22187 23778 24204 26420 29062 30255 31704 32272 36306 39630 40340 43593 44374 47556 48408 52840 58124 59445 60510 63408 66561 72612 72655 79260 80680 87186 88748 90765 95112 96816 105680 110935 116248 118890 121020 130779 133122 145224 145310 158520 161360 174372 177496 181530 190224 199683 217965 221870 232496 237780 242040 261558 266244 290448 290620 317040 332805 348744 354992 363060 399366 435930 443740 475560 484080 523116 532488 581240 653895 665610 697488 726120 798732 871860 887480 951120 998415 1046232 1064976 1162480 1307790 1331220 1452240 1597464 1743720 1774960 1996830 2092464 2615580 2662440 2664457 3194928 3487440 3993660 5231160 5324880 5328914 7987320 7993371 10462320 10657828 13322285 15974640 15986742 21315656 23980113 26644570 29309027 31973484 39966855 42631312 47960226 53289140 58618054 63946968 79933710 87927081 95920452 106578280 117236108 119900565 127893936 146545135 159867420 175854162 191840904 213156560 234472216 239801130 263781243 293090270 319734840 351708324 383681808 439635405 468944432 479602260 527562486 586180540 639469680 703416648 879270810 959204520 1055124972 1172361080 1318906215 1406833296 1758541620 1918409040 2110249944 2344722160 2637812430 3517083240 4220499888 5275624860 7034166480 10551249720 21102499440
• Sum of all divisors σ(n): 77408768736
• Sum of proper divisors (its aliquot sum) s(n): 56306269296
• 21102499440 is an abundant number, because the sum of its proper divisors (56306269296) is greater than itself. Its abundance is 35203769856

Bases of 21102499440

• Binary: 10011101001110011101001011001110000₂
• Hexadecimal: 0x4E9CE9670
• Base-36: 9OZVSS0

Squares and roots of 21102499440

• 21102499440 squared (21102499440²) is 445315482615200313600
• 21102499440 cubed (21102499440³) is 9397269722510594353231824384000
• The square root of 21102499440 is 145266.9936358565
• The cube root of 21102499440 is 2763.4055944327

Scales and comparisons

• 21,102,499,440 seconds is equal to 670 years, 51 weeks, 4 days, 21 hours, 24 minutes.
• To count from 1 to 21,102,499,440 would take you about one thousand, three hundred forty-one 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 21102499440 cubic inches would be around 230.3 feet tall.

Recreational maths with 21102499440

• 21102499440 backwards is 04499420112
• 21102499440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21102499440's digits is 36
• More coming soon!