Base | Representation |
---|---|
bin | 10010101010111… |
… | …101001001001101 |
3 | 210211102202201222 |
4 | 102222331021031 |
5 | 1120143003011 |
6 | 51030013125 |
7 | 10522404263 |
oct | 2252751115 |
9 | 724382658 |
10 | 313250381 |
11 | 150904714 |
12 | 88aa71a5 |
13 | 4cb89c72 |
14 | 2d862433 |
15 | 1c779ddb |
hex | 12abd24d |
313250381 has 8 divisors (see below), whose sum is σ = 342376704. Its totient is φ = 285312960.
The previous prime is 313250341. The next prime is 313250401. The reversal of 313250381 is 183052313.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-313250381 is a prime.
It is a super-2 number, since 2×3132503812 = 196251602393290322, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 313250381.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (313250341) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296675 + ... + 297728.
It is an arithmetic number, because the mean of its divisors is an integer number (42797088).
Almost surely, 2313250381 is an apocalyptic number.
313250381 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
It is an amenable number.
313250381 is a deficient number, since it is larger than the sum of its proper divisors (29126323).
313250381 is a wasteful number, since it uses less digits than its factorization.
313250381 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 594451.
The product of its (nonzero) digits is 2160, while the sum is 26.
The square root of 313250381 is about 17698.8807838236. The cubic root of 313250381 is about 679.1471292877.
The spelling of 313250381 in words is "three hundred thirteen million, two hundred fifty thousand, three hundred eighty-one".
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