138564420
138,564,420 is an even composite number composed of seven prime numbers multiplied together.
138564420 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 138564420:
22 × 3 × 5 × 23 × 31 × 41 × 79
(2 × 2 × 3 × 5 × 23 × 31 × 41 × 79)See below for interesting mathematical facts about the number 138564420 from the Numbermatics database.
Names of 138564420
- Cardinal: 138564420 can be written as One hundred thirty-eight million, five hundred sixty-four thousand, four hundred twenty.
Scientific notation
- Scientific notation: 1.3856442 × 108
Factors of 138564420
Divisors of 138564420
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 5 6 10 12 15 20 23 30 31 41 46 60 62 69 79 82 92 93 115 123 124 138 155 158 164 186 205 230 237 246 276 310 316 345 372 395 410 460 465 474 492 615 620 690 713 790 820 930 943 948 1185 1230 1271 1380 1426 1580 1817 1860 1886 2139 2370 2449 2460 2542 2829 2852 3239 3565 3634 3772 3813 4278 4715 4740 4898 5084 5451 5658 6355 6478 7130 7268 7347 7626 8556 9085 9430 9717 9796 10695 10902 11316 12245 12710 12956 14145 14260 14694 15252 16195 18170 18860 19065 19434 21390 21804 24490 25420 27255 28290 29233 29388 32390 36340 36735 38130 38868 42780 48585 48980 54510 56327 56580 58466 64780 73470 74497 76260 87699 97170 100409 109020 112654 116932 146165 146940 148994 168981 175398 194340 200818 223491 225308 281635 292330 297988 301227 337962 350796 372485 401636 438495 446982 502045 563270 584660 602454 675924 744970 844905 876990 893964 1004090 1117455 1126540 1204908 1489940 1506135 1689810 1753980 2008180 2234910 2309407 3012270 3379620 4469820 4618814 6024540 6928221 9237628 11547035 13856442 23094070 27712884 34641105 46188140 69282210 138564420
- Sum of all divisors σ(n): 433520640
- Sum of proper divisors (its aliquot sum) s(n): 294956220
- 138564420 is an abundant number, because the sum of its proper divisors (294956220) is greater than itself. Its abundance is 156391800
Bases of 138564420
- Binary: 10000100001001010011010001002
- Hexadecimal: 0x8425344
- Base-36: 2AHWZO
Squares and roots of 138564420
- 138564420 squared (1385644202) is 19200098489936400
- 138564420 cubed (1385644203) is 2660450511200913102888000
-
The
square root of 138564420 is 11771.3389212953 -
The
cube root of 138564420 is 517.4684897615
Scales and comparisons
How big is 138564420?- 138,564,420 seconds is equal to 4 years, 21 weeks, 18 hours, 7 minutes.
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To count from 1 to 138,564,420 would take you about 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 138564420 cubic inches would be around 43.1 feet tall.
Recreational maths with 138564420
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