398961381
398,961,381 is an odd composite number composed of six prime numbers multiplied together.
398961381 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 398961381:
3 × 72 × 13 × 23 × 29 × 313
(3 × 7 × 7 × 13 × 23 × 29 × 313)See below for interesting mathematical facts about the number 398961381 from the Numbermatics database.
Names of 398961381
- Cardinal: 398961381 can be written as Three hundred ninety-eight million, nine hundred sixty-one thousand, three hundred eighty-one.
Scientific notation
- Scientific notation: 3.98961381 × 108
Factors of 398961381
Divisors of 398961381
- Number of divisors d(n): 96
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Complete list of divisors:
1 3 7 13 21 23 29 39 49 69 87 91 147 161 203 273 299 313 377 483 609 637 667 897 939 1127 1131 1421 1911 2001 2093 2191 2639 3381 4069 4263 4669 6279 6573 7199 7917 8671 9077 12207 14007 14651 15337 18473 21597 26013 27231 28483 32683 43953 46011 50393 55419 60697 63539 85449 93587 98049 118001 151179 182091 190617 199381 208771 280761 352751 354003 424879 444773 598143 626313 655109 826007 1058253 1274637 1334319 1461397 1965327 2478021 2714023 4384191 4585763 5782049 8142069 10229779 13757289 17346147 18998161 30689337 56994483 132987127 398961381
- Sum of all divisors σ(n): 721647360
- Sum of proper divisors (its aliquot sum) s(n): 322685979
- 398961381 is a deficient number, because the sum of its proper divisors (322685979) is less than itself. Its deficiency is 76275402
Bases of 398961381
- Binary: 101111100011110101010111001012
- Hexadecimal: 0x17C7AAE5
- Base-36: 6LJ4KL
Squares and roots of 398961381
- 398961381 squared (3989613812) is 159170183529427161
- 398961381 cubed (3989613813) is 63502756234923714291469341
-
The
square root of 398961381 is 19974.0176479345 -
The
cube root of 398961381 is 736.1680294575
Scales and comparisons
How big is 398961381?- 398,961,381 seconds is equal to 12 years, 35 weeks, 4 days, 14 hours, 36 minutes, 21 seconds.
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To count from 1 to 398,961,381 would take you about nineteen 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 398961381 cubic inches would be around 61.3 feet tall.
Recreational maths with 398961381
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