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13138126 = 2163191211
BaseRepresentation
bin110010000111…
…100011001110
3220201111010021
4302013203032
511330410001
61145332354
7216446401
oct62074316
926644107
1013138126
117463961
1244970ba
132950051
141a5dd38
151247ba1
hexc878ce

13138126 has 16 divisors (see below), whose sum is σ = 20026368. Its totient is φ = 6463800.

The previous prime is 13138123. The next prime is 13138133. The reversal of 13138126 is 62183131.

13138126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131381262 = 345220709583752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13138126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13138123) 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, 62161 + ... + 62371.

It is an arithmetic number, because the mean of its divisors is an integer number (1251648).

Almost surely, 213138126 is an apocalyptic number.

13138126 is a deficient number, since it is larger than the sum of its proper divisors (6888242).

13138126 is a wasteful number, since it uses less digits than its factorization.

13138126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567.

The product of its digits is 864, while the sum is 25.

The square root of 13138126 is about 3624.6552939556. The cubic root of 13138126 is about 235.9633070407.

The spelling of 13138126 in words is "thirteen million, one hundred thirty-eight thousand, one hundred twenty-six".

Divisors: 1 2 163 191 211 326 382 422 31133 34393 40301 62266 68786 80602 6569063 13138126