21012748008
21,012,748,008 is an even composite number composed of five prime numbers multiplied together.
21012748008 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 21012748008:
23 × 3 × 73 × 792 × 409
(2 × 2 × 2 × 3 × 7 × 7 × 7 × 79 × 79 × 409)See below for interesting mathematical facts about the number 21012748008 from the Numbermatics database.
Names of 21012748008
- Cardinal: 21012748008 can be written as Twenty-one billion, twelve million, seven hundred forty-eight thousand and eight.
Scientific notation
- Scientific notation: 2.1012748008 × 1010
Factors of 21012748008
Divisors of 21012748008
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 21 24 28 42 49 56 79 84 98 147 158 168 196 237 294 316 343 392 409 474 553 588 632 686 818 948 1029 1106 1176 1227 1372 1636 1659 1896 2058 2212 2454 2744 2863 3272 3318 3871 4116 4424 4908 5726 6241 6636 7742 8232 8589 9816 11452 11613 12482 13272 15484 17178 18723 20041 22904 23226 24964 27097 30968 32311 34356 37446 40082 43687 46452 49928 54194 60123 64622 68712 74892 80164 81291 87374 92904 96933 108388 120246 129244 131061 140287 149784 160328 162582 174748 193866 216776 226177 240492 258488 262122 280574 305809 325164 349496 387732 420861 452354 480984 524244 561148 611618 650328 678531 775464 841722 904708 917427 1048488 1122296 1223236 1357062 1583239 1683444 1809416 1834854 2140663 2446472 2552569 2714124 3166478 3366888 3669708 4281326 4749717 5105138 5428248 6332956 6421989 7339416 7657707 8562652 9499434 10210276 11082673 12665912 12843978 15315414 17125304 17867983 18998868 20420552 22165346 25687956 30630828 33248019 35735966 37997736 44330692 51375912 53603949 61261656 66496038 71471932 88661384 107207898 125075881 132992076 142943864 214415796 250151762 265984152 375227643 428831592 500303524 750455286 875531167 1000607048 1500910572 1751062334 2626593501 3001821144 3502124668 5253187002 7004249336 10506374004 21012748008
- Sum of all divisors σ(n): 62198640000
- Sum of proper divisors (its aliquot sum) s(n): 41185891992
- 21012748008 is an abundant number, because the sum of its proper divisors (41185891992) is greater than itself. Its abundance is 20173143984
Bases of 21012748008
- Binary: 100111001000111010100010110111010002
- Hexadecimal: 0x4E47516E8
- Base-36: 9NIG44O
Squares and roots of 21012748008
- 21012748008 squared (210127480082) is 441535578847707968064
- 21012748008 cubed (210127480083) is 9277875854893302541302543616512
-
The
square root of 21012748008 is 144957.7455950529 -
The
cube root of 21012748008 is 2759.4823299221
Scales and comparisons
How big is 21012748008?- 21,012,748,008 seconds is equal to 668 years, 7 weeks, 2 days, 2 hours, 26 minutes, 48 seconds.
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To count from 1 to 21,012,748,008 would take you about one thousand, three hundred thirty-six 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 21012748008 cubic inches would be around 230 feet tall.
Recreational maths with 21012748008
- 21012748008 backwards is 80084721012
- The number of decimal digits it has is: 11
- The sum of 21012748008's digits is 33
- More coming soon!
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