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9312972 = 2232293389
BaseRepresentation
bin100011100001…
…101011001100
3122112010222220
4203201223030
54341003342
6531335340
7142105344
oct43415314
918463886
109312972
115290a79
123151550
131c10c46
141345d24
15c3e5ec
hex8e1acc

9312972 has 24 divisors (see below), whose sum is σ = 21831600. Its totient is φ = 3089856.

The previous prime is 9312967. The next prime is 9312997. The reversal of 9312972 is 2792139.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1054 + ... + 4442.

It is an arithmetic number, because the mean of its divisors is an integer number (909650).

Almost surely, 29312972 is an apocalyptic number.

It is an amenable number.

9312972 is an abundant number, since it is smaller than the sum of its proper divisors (12518628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9312972 is a wasteful number, since it uses less digits than its factorization.

9312972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625 (or 3623 counting only the distinct ones).

The product of its digits is 6804, while the sum is 33.

The square root of 9312972 is about 3051.7162384468. The cubic root of 9312972 is about 210.3921018977.

The spelling of 9312972 in words is "nine million, three hundred twelve thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 229 458 687 916 1374 2748 3389 6778 10167 13556 20334 40668 776081 1552162 2328243 3104324 4656486 9312972