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12576920 = 235314423
BaseRepresentation
bin101111111110…
…100010011000
3212122222021212
4233332202120
511204430140
61125322252
7211621256
oct57764230
925588255
1012576920
117110254
124266388
1327b4785
1419555d6
151186765
hexbfe898

12576920 has 16 divisors (see below), whose sum is σ = 28298160. Its totient is φ = 5030752.

The previous prime is 12576901. The next prime is 12576931. The reversal of 12576920 is 2967521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157172 + ... + 157251.

It is an arithmetic number, because the mean of its divisors is an integer number (1768635).

Almost surely, 212576920 is an apocalyptic number.

12576920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12576920 is an abundant number, since it is smaller than the sum of its proper divisors (15721240).

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

12576920 is a wasteful number, since it uses less digits than its factorization.

12576920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314434 (or 314430 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 12576920 is about 3546.3953530310. The cubic root of 12576920 is about 232.5545098999.

The spelling of 12576920 in words is "twelve million, five hundred seventy-six thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 314423 628846 1257692 1572115 2515384 3144230 6288460 12576920