642364920
642,364,920 is an even composite number composed of five prime numbers multiplied together.
642364920 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 642364920:
23 × 32 × 5 × 19 × 93913
(2 × 2 × 2 × 3 × 3 × 5 × 19 × 93913)See below for interesting mathematical facts about the number 642364920 from the Numbermatics database.
Names of 642364920
- Cardinal: 642364920 can be written as Six hundred forty-two million, three hundred sixty-four thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 6.4236492 × 108
Factors of 642364920
Divisors of 642364920
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 19 20 24 30 36 38 40 45 57 60 72 76 90 95 114 120 152 171 180 190 228 285 342 360 380 456 570 684 760 855 1140 1368 1710 2280 3420 6840 93913 187826 281739 375652 469565 563478 751304 845217 939130 1126956 1408695 1690434 1784347 1878260 2253912 2817390 3380868 3568694 3756520 4226085 5353041 5634780 6761736 7137388 8452170 8921735 10706082 11269560 14274776 16059123 16904340 17843470 21412164 26765205 32118246 33808680 35686940 42824328 53530410 64236492 71373880 80295615 107060820 128472984 160591230 214121640 321182460 642364920
- Sum of all divisors σ(n): 2197587600
- Sum of proper divisors (its aliquot sum) s(n): 1555222680
- 642364920 is an abundant number, because the sum of its proper divisors (1555222680) is greater than itself. Its abundance is 912857760
Bases of 642364920
- Binary: 1001100100100110110101111110002
- Hexadecimal: 0x2649B5F8
- Base-36: AMG3Y0
Squares and roots of 642364920
- 642364920 squared (6423649202) is 412632690446606400
- 642364920 cubed (6423649203) is 265060765188119084407488000
-
The
square root of 642364920 is 25344.9190174283 -
The
cube root of 642364920 is 862.8340432625
Scales and comparisons
How big is 642364920?- 642,364,920 seconds is equal to 20 years, 22 weeks, 18 hours, 42 minutes.
-
To count from 1 to 642,364,920 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 642364920 cubic inches would be around 71.9 feet tall.
Recreational maths with 642364920
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