Base | Representation |
---|---|
bin | 10010101010100… |
… | …111011100001000 |
3 | 210211021020210100 |
4 | 102222213130020 |
5 | 1120132131410 |
6 | 51024045400 |
7 | 10521554142 |
oct | 2252473410 |
9 | 724236710 |
10 | 313161480 |
11 | 150853945 |
12 | 88a63860 |
13 | 4cb58668 |
14 | 2d83bc92 |
15 | 1c75d8c0 |
hex | 12aa7708 |
313161480 has 48 divisors (see below), whose sum is σ = 1017775980. Its totient is φ = 83509632.
The previous prime is 313161421. The next prime is 313161481. The reversal of 313161480 is 84161313.
It can be written as a sum of positive squares in 2 ways, for example, as 251476164 + 61685316 = 15858^2 + 7854^2 .
It is a super-2 number, since 2×3131614802 = 196140225111580800, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (313161481) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434587 + ... + 435306.
Almost surely, 2313161480 is an apocalyptic number.
313161480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
313161480 is an abundant number, since it is smaller than the sum of its proper divisors (704614500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
313161480 is a wasteful number, since it uses less digits than its factorization.
313161480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 869910 (or 869903 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The square root of 313161480 is about 17696.3691191159. The cubic root of 313161480 is about 679.0828754989.
The spelling of 313161480 in words is "three hundred thirteen million, one hundred sixty-one thousand, four hundred eighty".
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