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12970312 = 231985331
BaseRepresentation
bin110001011110…
…100101001000
3220101221220221
4301132211020
511310022222
61141555424
7215150215
oct61364510
926357827
1012970312
117359873
124415b74
1328c1854
141a18b0c
1512130c7
hexc5e948

12970312 has 16 divisors (see below), whose sum is σ = 25599600. Its totient is φ = 6143760.

The previous prime is 12970297. The next prime is 12970333. The reversal of 12970312 is 21307921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42514 + ... + 42817.

It is an arithmetic number, because the mean of its divisors is an integer number (1599975).

Almost surely, 212970312 is an apocalyptic number.

It is an amenable number.

12970312 is a deficient number, since it is larger than the sum of its proper divisors (12629288).

12970312 is a wasteful number, since it uses less digits than its factorization.

12970312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85356 (or 85352 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12970312 is about 3601.4319374382. The cubic root of 12970312 is about 234.9543415143.

The spelling of 12970312 in words is "twelve million, nine hundred seventy thousand, three hundred twelve".

Divisors: 1 2 4 8 19 38 76 152 85331 170662 341324 682648 1621289 3242578 6485156 12970312