21126979872
21,126,979,872 is an even composite number composed of five prime numbers multiplied together.
21126979872 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21126979872:
25 × 37 × 37 × 41 × 199
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 37 × 41 × 199)See below for interesting mathematical facts about the number 21126979872 from the Numbermatics database.
Names of 21126979872
- Cardinal: 21126979872 can be written as Twenty-one billion, one hundred twenty-six million, nine hundred seventy-nine thousand, eight hundred seventy-two.
Scientific notation
- Scientific notation: 2.1126979872 × 1010
Factors of 21126979872
Divisors of 21126979872
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 37 41 48 54 72 74 81 82 96 108 111 123 144 148 162 164 199 216 222 243 246 288 296 324 328 333 369 398 432 444 486 492 592 597 648 656 666 729 738 796 864 888 972 984 999 1107 1184 1194 1296 1312 1332 1458 1476 1517 1592 1776 1791 1944 1968 1998 2187 2214 2388 2592 2664 2916 2952 2997 3034 3184 3321 3552 3582 3888 3936 3996 4374 4428 4551 4776 5328 5373 5832 5904 5994 6068 6368 6642 7164 7363 7776 7992 8159 8748 8856 8991 9102 9552 9963 10656 10746 11664 11808 11988 12136 13284 13653 14328 14726 15984 16119 16318 17496 17712 17982 18204 19104 19926 21492 22089 23328 23976 24272 24477 26568 26973 27306 28656 29452 29889 31968 32238 32636 34992 35424 35964 36408 39852 40959 42984 44178 47952 48357 48544 48954 53136 53946 54612 57312 58904 59778 64476 65272 66267 69984 71928 72816 73431 79704 80919 81918 85968 88356 89667 95904 96714 97908 106272 107892 109224 117808 119556 122877 128952 130544 132534 143856 145071 145632 146862 159408 161838 163836 171936 176712 179334 193428 195816 198801 215784 218448 220293 235616 239112 245754 257904 261088 265068 287712 290142 293724 301883 318816 323676 327672 353424 358668 368631 386856 391632 397602 431568 435213 436896 440586 478224 491508 515808 530136 580284 587448 596403 603766 647352 655344 660879 706848 717336 737262 773712 783264 795204 863136 870426 881172 905649 956448 983016 1060272 1105893 1160568 1174896 1192806 1207532 1294704 1310688 1321758 1434672 1474524 1547424 1590408 1740852 1762344 1789209 1811298 1966032 1982637 2120544 2211786 2321136 2349792 2385612 2415064 2589408 2643516 2716947 2869344 2949048 3180816 3317679 3481704 3524688 3578418 3622596 3932064 3965274 4423572 4642272 4771224 4830128 5287032 5367627 5433894 5898096 5947911 6361632 6635358 6963408 7049376 7156836 7245192 7930548 8150841 8847144 9542448 9660256 10574064 10735254 10867788 11796192 11895822 13270716 13926816 14313672 14490384 15861096 16102881 16301682 17694288 17843733 19084896 21148128 21470508 21735576 23791644 24452523 26541432 28627344 28980768 31722192 32205762 32603364 35388576 35687466 42941016 43471152 47583288 48905046 53082864 57254688 63444384 64411524 65206728 71374932 73357569 85882032 86942304 95166576 97810092 106165728 128823048 130413456 142749864 146715138 171764064 190333152 195620184 220072707 257646096 260826912 285499728 293430276 391240368 440145414 515292192 570999456 586860552 660218121 782480736 880290828 1173721104 1320436242 1760581656 2347442208 2640872484 3521163312 5281744968 7042326624 10563489936 21126979872
- Sum of all divisors σ(n): 65959488000
- Sum of proper divisors (its aliquot sum) s(n): 44832508128
- 21126979872 is an abundant number, because the sum of its proper divisors (44832508128) is greater than itself. Its abundance is 23705528256
Bases of 21126979872
- Binary: 100111010110100010000100001001000002
- Hexadecimal: 0x4EB442120
- Base-36: 9PEGI00
Squares and roots of 21126979872
- 21126979872 squared (211269798722) is 446349278511893136384
- 21126979872 cubed (211269798723) is 9430012223002488404999718862848
-
The
square root of 21126979872 is 145351.2293446465 -
The
cube root of 21126979872 is 2764.4737652181
Scales and comparisons
How big is 21126979872?- 21,126,979,872 seconds is equal to 671 years, 40 weeks, 1 day, 5 hours, 31 minutes, 12 seconds.
-
To count from 1 to 21,126,979,872 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 21126979872 cubic inches would be around 230.4 feet tall.
Recreational maths with 21126979872
- 21126979872 backwards is 27897962112
- 21126979872 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21126979872's digits is 54
- More coming soon!
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