Base | Representation |
---|---|
bin | 110001011010… |
… | …110110010111 |
3 | 220101011221222 |
4 | 301122312113 |
5 | 11304030111 |
6 | 1141400555 |
7 | 215054525 |
oct | 61326627 |
9 | 26334858 |
10 | 12955031 |
11 | 7349341 |
12 | 440915b |
13 | 28b78cb |
14 | 1a13315 |
15 | 120d7db |
hex | c5ad97 |
12955031 has 4 divisors (see below), whose sum is σ = 13080912. Its totient is φ = 12829152.
The previous prime is 12955027. The next prime is 12955039. The reversal of 12955031 is 13055921.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13055921 = 829 ⋅15749.
It is a cyclic number.
It is not a de Polignac number, because 12955031 - 22 = 12955027 is a prime.
It is a super-2 number, since 2×129550312 = 335665656421922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12955039) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62786 + ... + 62991.
It is an arithmetic number, because the mean of its divisors is an integer number (3270228).
Almost surely, 212955031 is an apocalyptic number.
12955031 is a deficient number, since it is larger than the sum of its proper divisors (125881).
12955031 is a wasteful number, since it uses less digits than its factorization.
12955031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 125880.
The product of its (nonzero) digits is 1350, while the sum is 26.
The square root of 12955031 is about 3599.3097949468. The cubic root of 12955031 is about 234.8620346059.
The spelling of 12955031 in words is "twelve million, nine hundred fifty-five thousand, thirty-one".
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