21025250400

Names of 21025250400

• Cardinal: 21025250400 can be written as Twenty-one billion, twenty-five million, two hundred fifty thousand, four hundred.

Scientific notation

• Scientific notation: 2.10252504 × 10¹⁰

Factors of 21025250400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 10371

Divisors of 21025250400

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 25 28 30 32 33 35 40 42 44 48 50 55 56 60 66 70 75 77 80 84 88 96 100 105 110 112 120 121 132 140 150 154 160 165 168 175 176 200 210 220 224 231 240 242 264 275 280 300 308 330 336 350 352 363 385 400 420 440 462 480 484 525 528 550 560 600 605 616 660 672 700 726 770 800 825 840 847 880 924 968 1050 1056 1100 1120 1155 1200 1210 1232 1320 1400 1452 1540 1650 1680 1694 1760 1815 1848 1925 1936 2100 2200 2310 2400 2420 2464 2541 2640 2800 2904 3025 3080 3300 3360 3388 3630 3696 3850 3872 4200 4235 4400 4620 4840 5082 5280 5600 5775 5808 6050 6160 6600 6776 7260 7392 7700 8400 8470 8800 9075 9240 9680 10164 10343 11550 11616 12100 12320 12705 13200 13552 14520 15400 16800 16940 18150 18480 19360 20328 20686 21175 23100 24200 25410 26400 27104 29040 30800 31029 33880 36300 36960 40656 41372 42350 46200 48400 50820 51715 58080 61600 62058 63525 67760 72401 72600 81312 82744 84700 92400 96800 101640 103430 113773 124116 127050 135520 144802 145200 155145 165488 169400 184800 203280 206860 217203 227546 248232 254100 258575 289604 290400 310290 330976 338800 341319 362005 406560 413720 434406 455092 496464 508200 517150 568865 579208 620580 677600 682638 724010 775725 796411 827440 868812 910184 992928 1016400 1034300 1086015 1137730 1158416 1241160 1251503 1365276 1448020 1551450 1592822 1654880 1706595 1737624 1810025 1820368 2032800 2068600 2172030 2275460 2316832 2389233 2482320 2503006 2730552 2844325 2896040 3102900 3185644 3413190 3475248 3620050 3640736 3754509 3982055 4137200 4344060 4550920 4778466 4964640 5006012 5430075 5461104 5688650 5792080 6205800 6257515 6371288 6826380 6950496 7240100 7509018 7964110 8274400 8532975 8688120 8760521 9101840 9556932 10012024 10860150 10922208 11377300 11584160 11946165 12411600 12515030 12742576 13652760 14480200 15018036 15928220 17065950 17376240 17521042 18203680 18772545 19113864 19910275 20024048 21720300 22754600 23892330 24823200 25030060 25485152 26281563 27305520 28960400 30036072 31287575 31856440 34131900 34752480 35042084 37545090 38227728 39820550 40048096 43440600 43802605 45509200 47784660 50060120 52563126 54611040 57920800 59730825 60072144 62575150 63712880 68263800 70084168 75090180 76455456 79641100 86881200 87605210 91018400 93862725 95569320 100120240 105126252 119461650 120144288 125150300 127425760 131407815 136527600 140168336 150180360 159282200 173762400 175210420 187725450 191138640 200240480 210252504 219013025 238923300 250300600 262815630 273055200 280336672 300360720 318564400 350420840 375450900 382277280 420505008 438026050 477846600 500601200 525631260 600721440 637128800 657039075 700841680 750901800 841010016 876052100 955693200 1001202400 1051262520 1314078150 1401683360 1501803600 1752104200 1911386400 2102525040 2628156300 3003607200 3504208400 4205050080 5256312600 7008416800 10512625200 21025250400
• Sum of all divisors σ(n): 85978996992
• Sum of proper divisors (its aliquot sum) s(n): 64953746592
• 21025250400 is an abundant number, because the sum of its proper divisors (64953746592) is greater than itself. Its abundance is 43928496192

Bases of 21025250400

• Binary: 10011100101001100111101110001100000₂
• Hexadecimal: 0x4E533DC60
• Base-36: 9NPW31C

Squares and roots of 21025250400

• 21025250400 squared (21025250400²) is 442061154382700160000
• 21025250400 cubed (21025250400³) is 9294446463009328292120064000000
• The square root of 21025250400 is 145000.8634457051
• The cube root of 21025250400 is 2760.0295102915

Scales and comparisons

• 21,025,250,400 seconds is equal to 668 years, 27 weeks, 6 days, 19 hours, 20 minutes.
• To count from 1 to 21,025,250,400 would take you about one thousand, three hundred thirty-seven 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 21025250400 cubic inches would be around 230 feet tall.

Recreational maths with 21025250400

• 21025250400 backwards is 00405252012
• 21025250400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21025250400's digits is 21
• More coming soon!