21383751480

Names of 21383751480

• Cardinal: 21383751480 can be written as Twenty-one billion, three hundred eighty-three million, seven hundred fifty-one thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.138375148 × 10¹⁰

Factors of 21383751480

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 23706

Divisors of 21383751480

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 20 21 24 26 28 30 35 39 40 42 52 56 60 65 70 78 83 84 91 104 105 120 130 140 156 166 168 182 195 210 249 260 273 280 312 332 364 390 415 420 455 498 520 546 581 664 728 780 830 840 910 996 1079 1092 1162 1245 1365 1560 1660 1743 1820 1992 2158 2184 2324 2490 2730 2905 3237 3320 3486 3640 4316 4648 4980 5395 5460 5810 6474 6972 7553 8632 8715 9960 10790 10920 11620 12948 13944 15106 16185 17430 21580 22659 23240 23593 25896 30212 32370 34860 37765 43160 45318 47186 60424 64740 69720 70779 75530 90636 94372 113295 117965 129480 141558 151060 165151 181272 188744 226590 235930 283116 302120 306709 330302 353895 453180 471860 495453 566232 613418 660604 707790 825755 906360 920127 943720 990906 1226836 1321208 1415580 1533545 1651510 1840254 1958219 1981812 2146963 2453672 2477265 2831160 3067090 3303020 3680508 3916438 3963624 4293926 4600635 4954530 5874657 6134180 6440889 6606040 7361016 7832876 8587852 9201270 9791095 9909060 10734815 11749314 12268360 12881778 13707533 15665752 17175704 18402540 19582190 19818120 21469630 23498628 25456847 25763556 27415066 29373285 32204445 36805080 39164380 41122599 42939260 46997256 50913694 51527112 54830132 58746570 64408890 68537665 76370541 78328760 82245198 85878520 101827388 109660264 117493140 127284235 128817780 137075330 152741082 164490396 178197929 203654776 205612995 234986280 254568470 257635560 274150660 305482164 328980792 356395858 381852705 411225990 509136940 534593787 548301320 610964328 712791716 763705410 822451980 890989645 1018273880 1069187574 1425583432 1527410820 1644903960 1781979290 2138375148 2672968935 3054821640 3563958580 4276750296 5345937870 7127917160 10691875740 21383751480
• Sum of all divisors σ(n): 79910046720
• Sum of proper divisors (its aliquot sum) s(n): 58526295240
• 21383751480 is an abundant number, because the sum of its proper divisors (58526295240) is greater than itself. Its abundance is 37142543760

Bases of 21383751480

• Binary: 10011111010100100100010011100111000₂
• Hexadecimal: 0x4FA922738
• Base-36: 9TNC08O

Squares and roots of 21383751480

• 21383751480 squared (21383751480²) is 457264827358402190400
• 21383751480 cubed (21383751480³) is 9778037428777177329401241792000
• The square root of 21383751480 is 146231.8415393857
• The cube root of 21383751480 is 2775.6282528523

Scales and comparisons

• 21,383,751,480 seconds is equal to 679 years, 48 weeks, 5 days, 2 hours, 58 minutes.
• To count from 1 to 21,383,751,480 would take you about one thousand, three hundred fifty-nine 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 21383751480 cubic inches would be around 231.3 feet tall.

Recreational maths with 21383751480

• 21383751480 backwards is 08415738312
• 21383751480 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21383751480's digits is 42
• More coming soon!