397426890
397,426,890 is an even composite number composed of seven prime numbers multiplied together.
397426890 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 397426890:
2 × 3 × 5 × 7 × 23 × 107 × 769
See below for interesting mathematical facts about the number 397426890 from the Numbermatics database.
Names of 397426890
- Cardinal: 397426890 can be written as Three hundred ninety-seven million, four hundred twenty-six thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 3.9742689 × 108
Factors of 397426890
Divisors of 397426890
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 7 10 14 15 21 23 30 35 42 46 69 70 105 107 115 138 161 210 214 230 321 322 345 483 535 642 690 749 769 805 966 1070 1498 1538 1605 1610 2247 2307 2415 2461 3210 3745 3845 4494 4614 4830 4922 5383 7383 7490 7690 10766 11235 11535 12305 14766 16149 17227 17687 22470 23070 24610 26915 32298 34454 35374 36915 51681 53061 53830 73830 80745 82283 86135 88435 103362 106122 123809 161490 164566 172270 176870 246849 247618 258405 265305 371427 411415 493698 516810 530610 575981 619045 742854 822830 1151962 1234245 1238090 1727943 1857135 1892509 2468490 2879905 3455886 3714270 3785018 5677527 5759810 8639715 9462545 11355054 13247563 17279430 18925090 26495126 28387635 39742689 56775270 66237815 79485378 132475630 198713445 397426890
- Sum of all divisors σ(n): 1149603840
- Sum of proper divisors (its aliquot sum) s(n): 752176950
- 397426890 is an abundant number, because the sum of its proper divisors (752176950) is greater than itself. Its abundance is 354750060
Bases of 397426890
- Binary: 101111011000001000000110010102
- Hexadecimal: 0x17B040CA
- Base-36: 6KM8JU
Squares and roots of 397426890
- 397426890 squared (3974268902) is 157948132895072100
- 397426890 cubed (3974268903) is 62772835237795201028769000
-
The
square root of 397426890 is 19935.5684644307 -
The
cube root of 397426890 is 735.2229968005
Scales and comparisons
How big is 397426890?- 397,426,890 seconds is equal to 12 years, 33 weeks, 20 hours, 21 minutes, 30 seconds.
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To count from 1 to 397,426,890 would take you about eighteen 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 397426890 cubic inches would be around 61.3 feet tall.
Recreational maths with 397426890
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