642269920
642,269,920 is an even composite number composed of five prime numbers multiplied together.
642269920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 642269920:
25 × 5 × 19 × 41 × 5153
(2 × 2 × 2 × 2 × 2 × 5 × 19 × 41 × 5153)See below for interesting mathematical facts about the number 642269920 from the Numbermatics database.
Names of 642269920
- Cardinal: 642269920 can be written as Six hundred forty-two million, two hundred sixty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 6.4226992 × 108
Factors of 642269920
Divisors of 642269920
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 8 10 16 19 20 32 38 40 41 76 80 82 95 152 160 164 190 205 304 328 380 410 608 656 760 779 820 1312 1520 1558 1640 3040 3116 3280 3895 5153 6232 6560 7790 10306 12464 15580 20612 24928 25765 31160 41224 51530 62320 82448 97907 103060 124640 164896 195814 206120 211273 391628 412240 422546 489535 783256 824480 845092 979070 1056365 1566512 1690184 1958140 2112730 3133024 3380368 3916280 4014187 4225460 6760736 7832560 8028374 8450920 15665120 16056748 16901840 20070935 32113496 33803680 40141870 64226992 80283740 128453984 160567480 321134960 642269920
- Sum of all divisors σ(n): 1636498080
- Sum of proper divisors (its aliquot sum) s(n): 994228160
- 642269920 is an abundant number, because the sum of its proper divisors (994228160) is greater than itself. Its abundance is 351958240
Bases of 642269920
- Binary: 1001100100100001000010111000002
- Hexadecimal: 0x264842E0
- Base-36: AME2N4
Squares and roots of 642269920
- 642269920 squared (6422699202) is 412510650136806400
- 642269920 cubed (6422699203) is 264943182262514635583488000
-
The
square root of 642269920 is 25343.0448052321 -
The
cube root of 642269920 is 862.7915060311
Scales and comparisons
How big is 642269920?- 642,269,920 seconds is equal to 20 years, 21 weeks, 6 days, 16 hours, 18 minutes, 40 seconds.
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To count from 1 to 642,269,920 would take you about thirty 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 642269920 cubic inches would be around 71.9 feet tall.
Recreational maths with 642269920
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