Base | Representation |
---|---|
bin | 10010100110100… |
… | …101100000110010 |
3 | 210202021120120211 |
4 | 102212211200302 |
5 | 1114344330020 |
6 | 50545254334 |
7 | 10506564100 |
oct | 2246454062 |
9 | 722246524 |
10 | 312105010 |
11 | 1501a2128 |
12 | 886343aa |
13 | 4c878829 |
14 | 2d644c70 |
15 | 1c60085a |
hex | 129a5832 |
312105010 has 48 divisors (see below), whose sum is σ = 657834264. Its totient is φ = 106299648.
The previous prime is 312105007. The next prime is 312105019. The reversal of 312105010 is 10501213.
It can be written as a sum of positive squares in 4 ways, for example, as 222934761 + 89170249 = 14931^2 + 9443^2 .
It is not an unprimeable number, because it can be changed into a prime (312105019) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74902 + ... + 78958.
Almost surely, 2312105010 is an apocalyptic number.
312105010 is an abundant number, since it is smaller than the sum of its proper divisors (345729254).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
312105010 is a wasteful number, since it uses less digits than its factorization.
312105010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4235 (or 4228 counting only the distinct ones).
The product of its (nonzero) digits is 30, while the sum is 13.
The square root of 312105010 is about 17666.4939928668. The cubic root of 312105010 is about 678.3183721859.
Adding to 312105010 its reverse (10501213), we get a palindrome (322606223).
The spelling of 312105010 in words is "three hundred twelve million, one hundred five thousand, ten".
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