21358130639472

Names of 21358130639472

• Cardinal: 21358130639472 can be written as Twenty-one trillion, three hundred fifty-eight billion, one hundred thirty million, six hundred thirty-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.1358130639472 × 10¹³

Factors of 21358130639472

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 12088

Divisors of 21358130639472

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 31 33 36 44 48 54 62 66 72 88 93 99 108 124 132 144 176 186 198 216 248 264 279 297 341 372 396 432 496 528 558 594 682 744 792 837 1023 1116 1188 1364 1488 1584 1674 2046 2232 2376 2728 3069 3348 4092 4464 4752 5456 6138 6696 8184 9207 12041 12276 13392 16368 18414 24082 24552 36123 36828 48164 49104 72246 73656 96328 108369 132451 144492 147312 192656 216738 264902 288984 325107 373271 397353 433476 529804 577968 650214 746542 794706 866952 1059608 1119813 1192059 1300428 1493084 1589412 1733904 2119216 2239626 2384118 2600856 2986168 3178824 3359439 3576177 4105981 4479252 4768236 5201712 5972336 6357648 6718878 7152354 8211962 8958504 9536472 10078317 12317943 13437756 14304708 16423924 17917008 19072944 20156634 24635886 26875512 28609416 32847848 36953829 40313268 49271772 53751024 57218832 65695696 73907658 80626536 98543544 110861487 144985681 147815316 161253072 197087088 221722974 289971362 295630632 434957043 443445948 579942724 591261264 869914086 886891896 1159885448 1304871129 1594842491 1739828172 1773783792 2319770896 2609742258 3189684982 3479656344 3914613387 4494556111 4784527473 5219484516 6379369964 6959312688 7829226774 8989112222 9569054946 10438969032 12758739928 13483668333 14353582419 15658453548 17978224444 19138109892 20877938064 25517479856 26967336666 28707164838 31316907096 35956448888 38276219784 40451004999 43060747257 49440117221 53934673332 57414329676 62633814192 71912897776 76552439568 80902009998 86121494514 98880234442 107869346664 114828659352 121353014997 148320351663 161804019996 172242989028 197760468884 215738693328 229657318704 242706029994 296640703326 323608039992 344485978056 395520937768 444961054989 485412059988 593281406652 647216079984 688971956112 791041875536 889922109978 970824119976 1186562813304 1334883164967 1779844219956 1941648239952 2373125626608 2669766329934 3559688439912 5339532659868 7119376879824 10679065319736 21358130639472
• Sum of all divisors σ(n): 69042115783680
• Sum of proper divisors (its aliquot sum) s(n): 47683985144208
• 21358130639472 is an abundant number, because the sum of its proper divisors (47683985144208) is greater than itself. Its abundance is 26325854504736

Bases of 21358130639472

• Binary: 100110110110011010011110010100011001001110000₂
• Hexadecimal: 0x136CD3CA3270
• Base-36: 7KJSFJ5O0

Squares and roots of 21358130639472

• 21358130639472 squared (21358130639472²) is 456169744412752623644438784
• 21358130639472 cubed (21358130639472³) is 9742932994942122992750743072870478082048
• The square root of 21358130639472 is 4621485.7610374609
• The cube root of 21358130639472 is 27745.1927454811

Scales and comparisons

• 21,358,130,639,472 seconds is equal to 679,122 years, 25 weeks, 3 days, 2 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,358,130,639,472 would take you about one million, six hundred ninety-seven thousand, eight hundred six 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 21358130639472 cubic inches would be around 2312.1 feet tall.

Recreational maths with 21358130639472

• 21358130639472 backwards is 27493603185312
• 21358130639472 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21358130639472's digits is 54
• More coming soon!