21131881472
21,131,881,472 is an even composite number composed of six prime numbers multiplied together.
21131881472 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred fifty-two divisors.
Prime factorization of 21131881472:
210 × 13 × 19 × 29 × 43 × 67
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 19 × 29 × 43 × 67)See below for interesting mathematical facts about the number 21131881472 from the Numbermatics database.
Names of 21131881472
- Cardinal: 21131881472 can be written as Twenty-one billion, one hundred thirty-one million, eight hundred eighty-one thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 2.1131881472 × 1010
Factors of 21131881472
Divisors of 21131881472
- Number of divisors d(n): 352
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Complete list of divisors:
1 2 4 8 13 16 19 26 29 32 38 43 52 58 64 67 76 86 104 116 128 134 152 172 208 232 247 256 268 304 344 377 416 464 494 512 536 551 559 608 688 754 817 832 871 928 988 1024 1072 1102 1118 1216 1247 1273 1376 1508 1634 1664 1742 1856 1943 1976 2144 2204 2236 2432 2494 2546 2752 2881 3016 3268 3328 3484 3712 3886 3952 4288 4408 4472 4864 4988 5092 5504 5762 6032 6536 6656 6968 7163 7424 7772 7904 8576 8816 8944 9728 9976 10184 10621 11008 11524 12064 13072 13312 13936 14326 14848 15544 15808 16211 16549 17152 17632 17888 19456 19952 20368 21242 22016 23048 23693 24128 25259 26144 27872 28652 29696 31088 31616 32422 33098 34304 35264 35776 36917 37453 39904 40736 42484 44032 46096 47386 48256 50518 52288 54739 55744 57304 62176 63232 64844 66196 68608 70528 71552 73834 74906 79808 81472 83549 84968 92192 94772 96512 101036 104576 109478 111488 114608 124352 126464 129688 132392 141056 143104 147668 149812 159616 162944 167098 169936 184384 189544 193024 202072 209152 218956 222976 229216 248704 252928 259376 264784 282112 286208 295336 299624 308009 319232 325888 334196 339872 368768 379088 386048 404144 418304 437912 445952 458432 479921 497408 518752 529568 564224 572416 590672 599248 616018 638464 651776 668392 679744 711607 737536 758176 808288 836608 875824 891904 916864 959842 994816 1037504 1059136 1086137 1181344 1198496 1232036 1276928 1303552 1336784 1359488 1423214 1475072 1516352 1587431 1616576 1751648 1833728 1919684 1989632 2075008 2118272 2172274 2362688 2396992 2464072 2673568 2718976 2846428 2950144 3032704 3174862 3233152 3503296 3667456 3839368 4150016 4236544 4344548 4725376 4793984 4928144 5347136 5437952 5692856 6065408 6349724 6466304 7006592 7334912 7678736 8300032 8473088 8689096 9450752 9587968 9856288 10694272 10875904 11385712 12130816 12699448 12932608 14013184 15357472 16600064 16946176 17378192 18901504 19175936 19712576 20636603 21388544 22771424 24261632 25398896 25865216 28026368 30714944 34756384 37803008 38351872 39425152 41273206 42777088 45542848 50797792 56052736 61429888 69512768 78850304 82546412 85554176 91085696 101595584 122859776 139025536 157700608 165092824 182171392 203191168 245719552 278051072 315401216 330185648 364342784 406382336 491439104 556102144 660371296 728685568 812764672 1112204288 1320742592 1625529344 2641485184 5282970368 10565940736 21131881472
- Sum of all divisors σ(n): 51446841600
- Sum of proper divisors (its aliquot sum) s(n): 30314960128
- 21131881472 is an abundant number, because the sum of its proper divisors (30314960128) is greater than itself. Its abundance is 9183078656
Bases of 21131881472
- Binary: 100111010111000111011101100000000002
- Hexadecimal: 0x4EB8EEC00
- Base-36: 9PHDK3K
Squares and roots of 21131881472
- 21131881472 squared (211318814722) is 446556414546656886784
- 21131881472 cubed (211318814723) is 9436577222761249945372011266048
-
The
square root of 21131881472 is 145368.0895932805 -
The
cube root of 21131881472 is 2764.6875407933
Scales and comparisons
How big is 21131881472?- 21,131,881,472 seconds is equal to 671 years, 48 weeks, 1 day, 23 hours, 4 minutes, 32 seconds.
-
To count from 1 to 21,131,881,472 would take you about one thousand, three hundred forty-three 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 21131881472 cubic inches would be around 230.4 feet tall.
Recreational maths with 21131881472
- 21131881472 backwards is 27418813112
- 21131881472 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21131881472's digits is 38
- More coming soon!
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