21872090880

Names of 21872090880

• Cardinal: 21872090880 can be written as Twenty-one billion, eight hundred seventy-two million, ninety thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.187209088 × 10¹⁰

Factors of 21872090880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 12004

Divisors of 21872090880

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 53 54 60 64 72 80 90 96 106 108 120 128 135 144 159 160 180 192 212 216 240 256 265 270 288 318 320 360 384 424 432 477 480 530 540 576 636 640 720 768 795 848 864 954 960 1060 1080 1152 1272 1280 1431 1440 1590 1696 1728 1908 1920 2120 2160 2304 2385 2544 2862 2880 3180 3392 3456 3816 3840 4240 4320 4770 5088 5724 5760 6360 6784 6912 7155 7632 8480 8640 9540 10176 11448 11520 11941 12720 13568 14310 15264 16960 17280 19080 20352 22896 23882 25440 28620 30528 33920 34560 35823 38160 40704 45792 47764 50880 57240 59705 61056 67840 71646 76320 91584 95528 101760 107469 114480 119410 122112 143292 152640 179115 183168 191056 203520 214938 228960 238820 286584 305280 322407 358230 366336 382112 429876 457920 477640 537345 573168 610560 632873 644814 716460 764224 859752 915840 955280 1074690 1146336 1265746 1289628 1432920 1528448 1612035 1719504 1831680 1898619 1910560 2149380 2292672 2531492 2579256 2865840 3056896 3164365 3224070 3439008 3797238 3821120 4298760 4585344 5062984 5158512 5695857 5731680 6328730 6448140 6878016 7594476 7642240 8597520 9170688 9493095 10125968 10317024 11391714 11463360 12657460 12896280 13756032 15188952 15284480 17087571 17195040 18986190 20251936 20634048 22783428 22926720 25314920 25792560 27512064 28479285 30377904 34175142 34390080 37972380 40503872 41268096 45566856 45853440 50629840 51585120 56958570 60755808 68350284 68780160 75944760 81007744 82536192 85437855 91133712 101259680 103170240 113917140 121511616 136700568 137560320 151889520 162015488 170875710 182267424 202519360 206340480 227834280 243023232 273401136 303779040 341751420 364534848 405038720 412680960 455668560 486046464 546802272 607558080 683502840 729069696 810077440 911337120 1093604544 1215116160 1367005680 1458139392 1822674240 2187209088 2430232320 2734011360 3645348480 4374418176 5468022720 7290696960 10936045440 21872090880
• Sum of all divisors σ(n): 79086611520
• Sum of proper divisors (its aliquot sum) s(n): 57214520640
• 21872090880 is an abundant number, because the sum of its proper divisors (57214520640) is greater than itself. Its abundance is 35342429760

Bases of 21872090880

• Binary: 10100010111101011011001111100000000₂
• Hexadecimal: 0x517AD9F00
• Base-36: A1Q2TC0

Squares and roots of 21872090880

• 21872090880 squared (21872090880²) is 478388359462979174400
• 21872090880 cubed (21872090880³) is 10463353674108388498024169472000
• The square root of 21872090880 is 147892.1596299141
• The cube root of 21872090880 is 2796.5983725501

Scales and comparisons

• 21,872,090,880 seconds is equal to 695 years, 24 weeks, 1 day, 4 hours, 48 minutes.
• To count from 1 to 21,872,090,880 would take you about one thousand, three hundred ninety 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 21872090880 cubic inches would be around 233 feet tall.

Recreational maths with 21872090880

• 21872090880 backwards is 08809027812
• 21872090880 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21872090880's digits is 45
• More coming soon!