21356249184

Names of 21356249184

• Cardinal: 21356249184 can be written as Twenty-one billion, three hundred fifty-six million, two hundred forty-nine thousand, one hundred eighty-four.

Scientific notation

• Scientific notation: 2.1356249184 × 10¹⁰

Factors of 21356249184

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 142

Divisors of 21356249184

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 27 31 32 34 36 48 51 54 62 68 72 89 93 96 102 108 124 136 144 153 178 186 204 216 248 267 272 279 288 289 306 356 372 408 432 459 496 527 534 544 558 578 612 712 744 801 816 837 864 867 918 961 992 1054 1068 1116 1156 1224 1424 1488 1513 1581 1602 1632 1674 1734 1836 1922 2108 2136 2232 2312 2403 2448 2601 2759 2848 2883 2976 3026 3162 3204 3348 3468 3672 3844 4216 4272 4464 4539 4624 4743 4806 4896 5202 5518 5766 6052 6324 6408 6696 6936 7344 7688 7803 8277 8432 8544 8649 8928 8959 9078 9248 9486 9612 10404 11036 11532 12104 12648 12816 13392 13617 13872 14229 14688 15376 15606 16337 16554 16864 17298 17918 18156 18972 19224 20808 22072 23064 24208 24831 25296 25632 25721 25947 26784 26877 27234 27744 28458 30752 31212 32674 33108 34596 35836 36312 37944 38448 40851 41616 44144 46128 46903 48416 49011 49662 50592 51442 51894 53754 54468 56916 62424 65348 66216 69192 71672 72624 74493 75888 76896 77163 80631 81702 83232 85529 88288 92256 93806 98022 99324 102884 103788 107508 108936 113832 124848 130696 132432 138384 140709 143344 145248 147033 148986 151776 154326 161262 163404 171058 187612 196044 198648 205768 207576 215016 217872 227664 231489 241893 249696 256587 261392 264864 276768 277729 281418 286688 294066 297972 308652 322524 326808 342116 375224 392088 397296 411536 415152 422127 430032 435744 441099 455328 462978 483786 513174 522784 555458 562836 588132 595944 617304 645048 653616 684232 694467 750448 769761 784176 794592 797351 823072 830304 833187 844254 860064 882198 925956 967572 1026348 1110916 1125672 1176264 1191888 1234608 1266381 1290096 1307232 1368464 1388934 1453993 1500896 1539522 1568352 1594702 1666374 1688508 1764396 1851912 1935144 2052696 2221832 2251344 2309283 2352528 2383776 2392053 2469216 2499561 2532762 2580192 2736928 2777868 2907986 3079044 3189404 3332748 3377016 3528792 3703824 3870288 4105392 4361979 4443664 4502688 4618566 4705056 4784106 4999122 5065524 5555736 5815972 6158088 6378808 6665496 6754032 7057584 7176159 7407648 7498683 7740576 8210784 8723958 8887328 9237132 9568212 9998244 10131048 11111472 11631944 12316176 12757616 13085937 13330992 13508064 14115168 14352318 14997366 17447916 18474264 19136424 19996488 20262096 21528477 22222944 23263888 24632352 24717881 25515232 26171874 26661984 28704636 29994732 34895832 36948528 38272848 39257811 39992976 40524192 43056954 46527776 49435762 52343748 57409272 59989464 69791664 73897056 74153643 76545696 78515622 79985952 86113908 98871524 104687496 114818544 119978928 139583328 148307286 157031244 172227816 197743048 209374992 222460929 229637088 239957856 296614572 314062488 344455632 395486096 418749984 444921858 593229144 628124976 667382787 688911264 790972192 889843716 1186458288 1256249952 1334765574 1779687432 2372916576 2669531148 3559374864 5339062296 7118749728 10678124592 21356249184
• Sum of all divisors σ(n): 69140206800
• Sum of proper divisors (its aliquot sum) s(n): 47783957616
• 21356249184 is an abundant number, because the sum of its proper divisors (47783957616) is greater than itself. Its abundance is 26427708432

Bases of 21356249184

• Binary: 10011111000111011101000000001100000₂
• Hexadecimal: 0x4F8EE8060
• Base-36: 9T6YJC0

Squares and roots of 21356249184

• 21356249184 squared (21356249184²) is 456089379209100665856
• 21356249184 cubed (21356249184³) is 9740358432565422660561056661504
• The square root of 21356249184 is 146137.7746648689
• The cube root of 21356249184 is 2774.4378022529

Scales and comparisons

• 21,356,249,184 seconds is equal to 679 years, 3 weeks, 1 day, 19 hours, 26 minutes, 24 seconds.
• To count from 1 to 21,356,249,184 would take you about one thousand, three hundred fifty-eight 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 21356249184 cubic inches would be around 231.2 feet tall.

Recreational maths with 21356249184

• 21356249184 backwards is 48194265312
• The number of decimal digits it has is: 11
• The sum of 21356249184's digits is 45
• More coming soon!