21201535872
21,201,535,872 is an even composite number composed of five prime numbers multiplied together.
21201535872 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21201535872:
27 × 32 × 11 × 312 × 1741
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 11 × 31 × 31 × 1741)See below for interesting mathematical facts about the number 21201535872 from the Numbermatics database.
Names of 21201535872
- Cardinal: 21201535872 can be written as Twenty-one billion, two hundred one million, five hundred thirty-five thousand, eight hundred seventy-two.
Scientific notation
- Scientific notation: 2.1201535872 × 1010
Factors of 21201535872
Divisors of 21201535872
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 8 9 11 12 16 18 22 24 31 32 33 36 44 48 62 64 66 72 88 93 96 99 124 128 132 144 176 186 192 198 248 264 279 288 341 352 372 384 396 496 528 558 576 682 704 744 792 961 992 1023 1056 1116 1152 1364 1408 1488 1584 1741 1922 1984 2046 2112 2232 2728 2883 2976 3069 3168 3482 3844 3968 4092 4224 4464 5223 5456 5766 5952 6138 6336 6964 7688 8184 8649 8928 10446 10571 10912 11532 11904 12276 12672 13928 15376 15669 16368 17298 17856 19151 20892 21142 21824 23064 24552 27856 30752 31338 31713 32736 34596 35712 38302 41784 42284 43648 46128 49104 53971 55712 57453 61504 62676 63426 65472 69192 76604 83568 84568 92256 95139 98208 107942 111424 114906 123008 125352 126852 130944 138384 153208 161913 167136 169136 172359 184512 190278 196416 215884 222848 229812 250704 253704 276768 306416 323826 334272 338272 344718 369024 380556 392832 431768 459624 485739 501408 507408 553536 593681 612832 647652 668544 676544 689436 761112 863536 919248 971478 1002816 1014816 1107072 1187362 1225664 1295304 1353088 1378872 1522224 1673101 1727072 1781043 1838496 1942956 2005632 2029632 2374724 2451328 2590608 2757744 3044448 3346202 3454144 3562086 3676992 3885912 4059264 4749448 5019303 5181216 5343129 5515488 6088896 6692404 6908288 7124172 7353984 7771824 9498896 10038606 10362432 10686258 11030976 12177792 13384808 14248344 15057909 15543648 18404111 18997792 20077212 20724864 21372516 22061952 26769616 28496688 30115818 31087296 36808222 37995584 40154424 42745032 53539232 55212333 56993376 60231636 62174592 73616444 75991168 80308848 85490064 107078464 110424666 113986752 120463272 147232888 160617696 165636999 170980128 214156928 220849332 227973504 240926544 294465776 321235392 331273998 341960256 441698664 481853088 588931552 642470784 662547996 683920512 883397328 963706176 1177863104 1325095992 1766794656 1927412352 2355726208 2650191984 3533589312 5300383968 7067178624 10600767936 21201535872
- Sum of all divisors σ(n): 68811682680
- Sum of proper divisors (its aliquot sum) s(n): 47610146808
- 21201535872 is an abundant number, because the sum of its proper divisors (47610146808) is greater than itself. Its abundance is 26408610936
Bases of 21201535872
- Binary: 100111011111011010111000011100000002
- Hexadecimal: 0x4EFB5C380
- Base-36: 9QMUHS0
Squares and roots of 21201535872
- 21201535872 squared (212015358722) is 449505123331702800384
- 21201535872 cubed (212015358723) is 9530198996964881077184231374848
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The
square root of 21201535872 is 145607.4718961909 -
The
cube root of 21201535872 is 2767.7218415843
Scales and comparisons
How big is 21201535872?- 21,201,535,872 seconds is equal to 674 years, 7 weeks, 3 days, 3 hours, 31 minutes, 12 seconds.
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To count from 1 to 21,201,535,872 would take you about one thousand, three hundred forty-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 21201535872 cubic inches would be around 230.6 feet tall.
Recreational maths with 21201535872
- 21201535872 backwards is 27853510212
- 21201535872 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21201535872's digits is 36
- More coming soon!
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