21431788992
21,431,788,992 is an even composite number composed of five prime numbers multiplied together.
21431788992 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 21431788992:
26 × 32 × 31 × 137 × 8761
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 31 × 137 × 8761)See below for interesting mathematical facts about the number 21431788992 from the Numbermatics database.
Names of 21431788992
- Cardinal: 21431788992 can be written as Twenty-one billion, four hundred thirty-one million, seven hundred eighty-eight thousand, nine hundred ninety-two.
Scientific notation
- Scientific notation: 2.1431788992 × 1010
Factors of 21431788992
Divisors of 21431788992
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 31 32 36 48 62 64 72 93 96 124 137 144 186 192 248 274 279 288 372 411 496 548 558 576 744 822 992 1096 1116 1233 1488 1644 1984 2192 2232 2466 2976 3288 4247 4384 4464 4932 5952 6576 8494 8761 8768 8928 9864 12741 13152 16988 17522 17856 19728 25482 26283 26304 33976 35044 38223 39456 50964 52566 67952 70088 76446 78849 78912 101928 105132 135904 140176 152892 157698 203856 210264 271591 271808 280352 305784 315396 407712 420528 543182 560704 611568 630792 814773 815424 841056 1086364 1200257 1223136 1261584 1629546 1682112 2172728 2400514 2444319 2446272 2523168 3259092 3600771 4345456 4801028 4888638 5046336 6518184 7201542 8690912 9602056 9777276 10802313 13036368 14403084 17381824 19204112 19554552 21604626 26072736 28806168 37207967 38408224 39109104 43209252 52145472 57612336 74415934 76816448 78218208 86418504 111623901 115224672 148831868 156436416 172837008 223247802 230449344 297663736 334871703 345674016 446495604 595327472 669743406 691348032 892991208 1190654944 1339486812 1785982416 2381309888 2678973624 3571964832 5357947248 7143929664 10715894496 21431788992
- Sum of all divisors σ(n): 63882129792
- Sum of proper divisors (its aliquot sum) s(n): 42450340800
- 21431788992 is an abundant number, because the sum of its proper divisors (42450340800) is greater than itself. Its abundance is 21018551808
Bases of 21431788992
- Binary: 100111111010110111100100101110000002
- Hexadecimal: 0x4FD6F25C0
- Base-36: 9UFXM80
Squares and roots of 21431788992
- 21431788992 squared (214317889922) is 459321579397612376064
- 21431788992 cubed (214317889923) is 9844083169121802912411399487488
-
The
square root of 21431788992 is 146396.0006011093 -
The
cube root of 21431788992 is 2777.7051344063
Scales and comparisons
How big is 21431788992?- 21,431,788,992 seconds is equal to 681 years, 24 weeks, 1 day, 2 hours, 43 minutes, 12 seconds.
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To count from 1 to 21,431,788,992 would take you about one thousand, three hundred sixty-two 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 21431788992 cubic inches would be around 231.5 feet tall.
Recreational maths with 21431788992
- 21431788992 backwards is 29988713412
- The number of decimal digits it has is: 11
- The sum of 21431788992's digits is 54
- More coming soon!
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