21103969920

Names of 21103969920

• Cardinal: 21103969920 can be written as Twenty-one billion, one hundred three million, nine hundred sixty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.110396992 × 10¹⁰

Factors of 21103969920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 16463

Divisors of 21103969920

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 61 64 66 80 88 96 110 120 122 128 132 160 165 176 183 192 220 240 244 264 305 320 330 352 366 384 440 480 488 528 610 640 660 671 704 732 880 915 960 976 1056 1220 1320 1342 1408 1464 1760 1830 1920 1952 2013 2112 2440 2640 2684 2928 3355 3520 3660 3904 4026 4224 4880 5280 5368 5856 6710 7040 7320 7808 8052 9760 10065 10560 10736 11712 13420 14640 16104 16381 19520 20130 21120 21472 23424 26840 29280 32208 32762 39040 40260 42944 49143 53680 58560 64416 65524 80520 81905 85888 98286 107360 117120 128832 131048 161040 163810 180191 196572 214720 245715 257664 262096 322080 327620 360382 393144 429440 491430 524192 540573 644160 655240 720764 786288 900955 982860 999241 1048384 1081146 1288320 1310480 1441528 1572576 1801910 1965720 1998482 2096768 2162292 2620960 2702865 2883056 2997723 3145152 3603820 3931440 3996964 4324584 4996205 5241920 5405730 5766112 5995446 6290304 7207640 7862880 7993928 8649168 9992410 10483840 10811460 10991651 11532224 11990892 14415280 14988615 15725760 15987856 17298336 19984820 21622920 21983302 23064448 23981784 28830560 29977230 31451520 31975712 32974953 34596672 39969640 43245840 43966604 47963568 54958255 57661120 59954460 63951424 65949906 69193344 79939280 86491680 87933208 95927136 109916510 115322240 119908920 127902848 131899812 159878560 164874765 172983360 175866416 191854272 219833020 239817840 263799624 319757120 329749530 345966720 351732832 383708544 439666040 479635680 527599248 639514240 659499060 703465664 879332080 959271360 1055198496 1318998120 1406931328 1758664160 1918542720 2110396992 2637996240 3517328320 4220793984 5275992480 7034656640 10551984960 21103969920
• Sum of all divisors σ(n): 74591832960
• Sum of proper divisors (its aliquot sum) s(n): 53487863040
• 21103969920 is an abundant number, because the sum of its proper divisors (53487863040) is greater than itself. Its abundance is 32383893120

Bases of 21103969920

• Binary: 10011101001111001010000011010000000₂
• Hexadecimal: 0x4E9E50680
• Base-36: 9P0RBEO

Squares and roots of 21103969920

• 21103969920 squared (21103969920²) is 445377546384264806400
• 21103969920 cubed (21103969920³) is 9399234341936929235580223488000
• The square root of 21103969920 is 145272.0548488249
• The cube root of 21103969920 is 2763.4697801673

Scales and comparisons

• 21,103,969,920 seconds is equal to 671 years, 2 weeks, 21 hours, 52 minutes.
• To count from 1 to 21,103,969,920 would take you about one thousand, three hundred forty-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 21103969920 cubic inches would be around 230.3 feet tall.

Recreational maths with 21103969920

• 21103969920 backwards is 02996930112
• The number of decimal digits it has is: 11
• The sum of 21103969920's digits is 42
• More coming soon!