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12625420 = 225631271
BaseRepresentation
bin110000001010…
…011000001100
3212202102211011
4300022120030
511213003140
61130335004
7212212543
oct60123014
925672734
1012625420
117143735
12428a464
132800882
14196915a
151195cea
hexc0a60c

12625420 has 12 divisors (see below), whose sum is σ = 26513424. Its totient is φ = 5050160.

The previous prime is 12625391. The next prime is 12625429. The reversal of 12625420 is 2452621.

It is a junction number, because it is equal to n+sod(n) for n = 12625391 and 12625400.

It is not an unprimeable number, because it can be changed into a prime (12625429) 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, 315616 + ... + 315655.

It is an arithmetic number, because the mean of its divisors is an integer number (2209452).

Almost surely, 212625420 is an apocalyptic number.

12625420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12625420 is an abundant number, since it is smaller than the sum of its proper divisors (13888004).

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

12625420 is a wasteful number, since it uses less digits than its factorization.

12625420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631280 (or 631278 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 12625420 is about 3553.2267025902. The cubic root of 12625420 is about 232.8530574658.

The spelling of 12625420 in words is "twelve million, six hundred twenty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 631271 1262542 2525084 3156355 6312710 12625420