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13123038 = 235094297
BaseRepresentation
bin110010000011…
…110111011110
3220200201102110
4302003313132
511324414123
61145134450
7216354405
oct62036736
926621373
1013123038
117453595
12448a426
132946216
141a5863c
151243493
hexc83dde

13123038 has 16 divisors (see below), whose sum is σ = 26303760. Its totient is φ = 4364736.

The previous prime is 13123021. The next prime is 13123039. The reversal of 13123038 is 83032131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123039) 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, 906 + ... + 5202.

It is an arithmetic number, because the mean of its divisors is an integer number (1643985).

Almost surely, 213123038 is an apocalyptic number.

13123038 is an abundant number, since it is smaller than the sum of its proper divisors (13180722).

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

13123038 is a wasteful number, since it uses less digits than its factorization.

13123038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13123038 is about 3622.5733947016. The cubic root of 13123038 is about 235.8729446325.

Adding to 13123038 its reverse (83032131), we get a palindrome (96155169).

The spelling of 13123038 in words is "thirteen million, one hundred twenty-three thousand, thirty-eight".

Divisors: 1 2 3 6 509 1018 1527 3054 4297 8594 12891 25782 2187173 4374346 6561519 13123038