20656974720

Names of 20656974720

• Cardinal: 20656974720 can be written as Twenty billion, six hundred fifty-six million, nine hundred seventy-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.065697472 × 10¹⁰

Factors of 20656974720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 12021

Divisors of 20656974720

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 53 60 64 68 80 85 96 102 106 120 128 136 159 160 170 192 204 212 240 255 265 272 318 320 340 384 408 424 480 510 530 544 636 640 680 795 816 848 901 960 1020 1060 1088 1272 1360 1590 1632 1696 1802 1920 2040 2120 2176 2544 2703 2720 3180 3264 3392 3604 4080 4240 4505 5088 5406 5440 6360 6528 6784 7208 8160 8480 9010 10176 10812 10880 11941 12720 13515 14416 16320 16960 18020 20352 21624 23882 25440 27030 28832 32640 33920 35823 36040 43248 47764 50880 54060 57664 59705 71646 72080 86496 95528 101760 108120 115328 119410 143292 144160 172992 179115 191056 202997 216240 238820 286584 288320 345984 358230 382112 405994 432480 477640 573168 576640 608991 632873 716460 764224 811988 864960 955280 1014985 1146336 1217982 1265746 1432920 1528448 1623976 1729920 1898619 1910560 2029970 2292672 2435964 2531492 2865840 3044955 3164365 3247952 3797238 3821120 4059940 4585344 4871928 5062984 5731680 6089910 6328730 6495904 7594476 7642240 8119880 9493095 9743856 10125968 10758841 11463360 12179820 12657460 12991808 15188952 16239760 18986190 19487712 20251936 21517682 22926720 24359640 25314920 25983616 30377904 32276523 32479520 37972380 38975424 40503872 43035364 48719280 50629840 53794205 60755808 64553046 64959040 75944760 77950848 81007744 86070728 97438560 101259680 107588410 121511616 129106092 129918080 151889520 161382615 172141456 194877120 202519360 215176820 243023232 258212184 303779040 322765230 344282912 389754240 405038720 430353640 516424368 607558080 645530460 688565824 860707280 1032848736 1215116160 1291060920 1377131648 1721414560 2065697472 2582121840 3442829120 4131394944 5164243680 6885658240 10328487360 20656974720
• Sum of all divisors σ(n): 71038658880
• Sum of proper divisors (its aliquot sum) s(n): 50381684160
• 20656974720 is an abundant number, because the sum of its proper divisors (50381684160) is greater than itself. Its abundance is 29724709440

Bases of 20656974720

• Binary: 10011001111010000000110101110000000₂
• Hexadecimal: 0x4CF406B80
• Base-36: 9HMMNPC

Squares and roots of 20656974720

• 20656974720 squared (20656974720²) is 426710604582719078400
• 20656974720 cubed (20656974720³) is 8814550171621144151370498048000
• The square root of 20656974720 is 143725.3447378017
• The cube root of 20656974720 is 2743.8197174635

Scales and comparisons

• 20,656,974,720 seconds is equal to 656 years, 43 weeks, 8 hours, 32 minutes.
• To count from 1 to 20,656,974,720 would take you about one thousand, three hundred thirteen 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 20656974720 cubic inches would be around 228.7 feet tall.

Recreational maths with 20656974720

• 20656974720 backwards is 02747965602
• 20656974720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20656974720's digits is 48
• More coming soon!