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12601880 = 235315047
BaseRepresentation
bin110000000100…
…101000011000
3212201020112022
4300010220120
511211230010
61130034012
7212054114
oct60045030
925636468
1012601880
117127a85
124278908
1327c2c45
141960744
15118dd55
hexc04a18

12601880 has 16 divisors (see below), whose sum is σ = 28354320. Its totient is φ = 5040736.

The previous prime is 12601847. The next prime is 12601891. The reversal of 12601880 is 8810621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157484 + ... + 157563.

It is an arithmetic number, because the mean of its divisors is an integer number (1772145).

Almost surely, 212601880 is an apocalyptic number.

12601880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12601880 is an abundant number, since it is smaller than the sum of its proper divisors (15752440).

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

12601880 is a wasteful number, since it uses less digits than its factorization.

12601880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315058 (or 315054 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 12601880 is about 3549.9126749823. The cubic root of 12601880 is about 232.7082498434.

The spelling of 12601880 in words is "twelve million, six hundred one thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 315047 630094 1260188 1575235 2520376 3150470 6300940 12601880