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12628135 = 5131731123
BaseRepresentation
bin110000001011…
…000010100111
3212202120112201
4300023002213
511213100020
61130355331
7212223502
oct60130247
925676481
1012628135
117145783
12428bb47
132801b90
14196a139
151196a0a
hexc0b0a7

12628135 has 16 divisors (see below), whose sum is σ = 16428384. Its totient is φ = 9263232.

The previous prime is 12628117. The next prime is 12628163. The reversal of 12628135 is 53182621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12628135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10684 + ... + 11806.

It is an arithmetic number, because the mean of its divisors is an integer number (1026774).

Almost surely, 212628135 is an apocalyptic number.

12628135 is a deficient number, since it is larger than the sum of its proper divisors (3800249).

12628135 is a wasteful number, since it uses less digits than its factorization.

12628135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its digits is 2880, while the sum is 28.

The square root of 12628135 is about 3553.6087291653. The cubic root of 12628135 is about 232.8697473592.

The spelling of 12628135 in words is "twelve million, six hundred twenty-eight thousand, one hundred thirty-five".

Divisors: 1 5 13 65 173 865 1123 2249 5615 11245 14599 72995 194279 971395 2525627 12628135