21105163008
21,105,163,008 is an even composite number composed of four prime numbers multiplied together.
21105163008 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 21105163008:
28 × 34 × 631 × 1613
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 631 × 1613)See below for interesting mathematical facts about the number 21105163008 from the Numbermatics database.
Names of 21105163008
- Cardinal: 21105163008 can be written as Twenty-one billion, one hundred five million, one hundred sixty-three thousand and eight.
Scientific notation
- Scientific notation: 2.1105163008 × 1010
Factors of 21105163008
Divisors of 21105163008
- Number of divisors d(n): 180
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 256 288 324 384 432 576 631 648 768 864 1152 1262 1296 1613 1728 1893 2304 2524 2592 3226 3456 3786 4839 5048 5184 5679 6452 6912 7572 9678 10096 10368 11358 12904 14517 15144 17037 19356 20192 20736 22716 25808 29034 30288 34074 38712 40384 43551 45432 51111 51616 58068 60576 68148 77424 80768 87102 90864 102222 103232 116136 121152 130653 136296 154848 161536 174204 181728 204444 206464 232272 242304 261306 272592 309696 348408 363456 408888 412928 464544 484608 522612 545184 619392 696816 726912 817776 929088 1017803 1045224 1090368 1238784 1393632 1453824 1635552 1858176 2035606 2090448 2180736 2787264 3053409 3271104 3716352 4071212 4180896 4361472 5574528 6106818 6542208 8142424 8361792 9160227 11149056 12213636 13084416 16284848 16723584 18320454 24427272 27480681 32569696 33447168 36640908 48854544 54961362 65139392 73281816 82442043 97709088 109922724 130278784 146563632 164884086 195418176 219845448 260557568 293127264 329768172 390836352 439690896 586254528 659536344 781672704 879381792 1172509056 1319072688 1758763584 2345018112 2638145376 3517527168 5276290752 7035054336 10552581504 21105163008
- Sum of all divisors σ(n): 63070587888
- Sum of proper divisors (its aliquot sum) s(n): 41965424880
- 21105163008 is an abundant number, because the sum of its proper divisors (41965424880) is greater than itself. Its abundance is 20860261872
Bases of 21105163008
- Binary: 100111010011111011100111011000000002
- Hexadecimal: 0x4E9F73B00
- Base-36: 9P1GW00
Squares and roots of 21105163008
- 21105163008 squared (211051630082) is 445427905594251608064
- 21105163008 cubed (211051630083) is 9400828555878715295956847296512
-
The
square root of 21105163008 is 145276.1611827625 -
The
cube root of 21105163008 is 2763.5218556853
Scales and comparisons
How big is 21105163008?- 21,105,163,008 seconds is equal to 671 years, 4 weeks, 17 hours, 16 minutes, 48 seconds.
-
To count from 1 to 21,105,163,008 would take you about one thousand, three hundred forty-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 21105163008 cubic inches would be around 230.3 feet tall.
Recreational maths with 21105163008
- 21105163008 backwards is 80036150112
- 21105163008 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21105163008's digits is 27
- More coming soon!
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