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12795138 = 233236947
BaseRepresentation
bin110000110011…
…110100000010
3220002001122000
4300303310002
511233421023
61134124430
7213520416
oct60636402
926061560
1012795138
11724a1a4
124350716
13285cbb5
1419b0d46
1511cb243
hexc33d02

12795138 has 16 divisors (see below), whose sum is σ = 28433760. Its totient is φ = 4265028.

The previous prime is 12795137. The next prime is 12795143. The reversal of 12795138 is 83159721.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12795131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118420 + ... + 118527.

It is an arithmetic number, because the mean of its divisors is an integer number (1777110).

Almost surely, 212795138 is an apocalyptic number.

12795138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12795138 is an abundant number, since it is smaller than the sum of its proper divisors (15638622).

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

12795138 is a wasteful number, since it uses less digits than its factorization.

12795138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236958 (or 236952 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 12795138 is about 3577.0292143062. The cubic root of 12795138 is about 233.8917974432.

The spelling of 12795138 in words is "twelve million, seven hundred ninety-five thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 236947 473894 710841 1421682 2132523 4265046 6397569 12795138