21531305120
21,531,305,120 is an even composite number composed of six prime numbers multiplied together.
21531305120 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 21531305120:
25 × 5 × 13 × 17 × 53 × 11489
(2 × 2 × 2 × 2 × 2 × 5 × 13 × 17 × 53 × 11489)See below for interesting mathematical facts about the number 21531305120 from the Numbermatics database.
Names of 21531305120
- Cardinal: 21531305120 can be written as Twenty-one billion, five hundred thirty-one million, three hundred five thousand, one hundred twenty.
Scientific notation
- Scientific notation: 2.153130512 × 1010
Factors of 21531305120
Divisors of 21531305120
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 53 65 68 80 85 104 106 130 136 160 170 208 212 221 260 265 272 340 416 424 442 520 530 544 680 689 848 884 901 1040 1060 1105 1360 1378 1696 1768 1802 2080 2120 2210 2720 2756 3445 3536 3604 4240 4420 4505 5512 6890 7072 7208 8480 8840 9010 11024 11489 11713 13780 14416 17680 18020 22048 22978 23426 27560 28832 35360 36040 45956 46852 55120 57445 58565 72080 91912 93704 110240 114890 117130 144160 149357 183824 187408 195313 229780 234260 298714 367648 374816 390626 459560 468520 597428 608917 746785 781252 919120 937040 976565 1194856 1217834 1493570 1562504 1838240 1874080 1953130 2389712 2435668 2539069 2987140 3044585 3125008 3906260 4779424 4871336 5078138 5974280 6089170 6250016 7812520 7915921 9742672 10156276 10351589 11948560 12178340 12695345 15625040 15831842 19485344 20312552 20703178 23897120 24356680 25390690 31250080 31663684 39579605 40625104 41406356 48713360 50781380 51757945 63327368 79159210 81250208 82812712 97426720 101562760 103515890 126654736 134570657 158318420 165625424 203125520 207031780 253309472 269141314 316636840 331250848 406251040 414063560 538282628 633273680 672853285 828127120 1076565256 1266547360 1345706570 1656254240 2153130512 2691413140 4306261024 5382826280 10765652560 21531305120
- Sum of all divisors σ(n): 59102537760
- Sum of proper divisors (its aliquot sum) s(n): 37571232640
- 21531305120 is an abundant number, because the sum of its proper divisors (37571232640) is greater than itself. Its abundance is 16039927520
Bases of 21531305120
- Binary: 101000000110101110110100100101000002
- Hexadecimal: 0x5035DA4A0
- Base-36: 9W36LCW
Squares and roots of 21531305120
- 21531305120 squared (215313051202) is 463597100170538214400
- 21531305120 cubed (215313051203) is 9981850616519062328866377728000
-
The
square root of 21531305120 is 146735.4937293633 -
The
cube root of 21531305120 is 2781.9978186411
Scales and comparisons
How big is 21531305120?- 21,531,305,120 seconds is equal to 684 years, 32 weeks, 4 days, 22 hours, 5 minutes, 20 seconds.
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To count from 1 to 21,531,305,120 would take you about one thousand, three hundred sixty-nine 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 21531305120 cubic inches would be around 231.8 feet tall.
Recreational maths with 21531305120
- 21531305120 backwards is 02150313512
- The number of decimal digits it has is: 11
- The sum of 21531305120's digits is 23
- More coming soon!
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