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13101137 = 71871591
BaseRepresentation
bin110001111110…
…100001010001
3220122121101022
4301332201101
511323214022
61144445225
7216233510
oct61764121
926577338
1013101137
117439095
124479815
13293926a
141a50677
15123bc42
hexc7e851

13101137 has 4 divisors (see below), whose sum is σ = 14972736. Its totient is φ = 11229540.

The previous prime is 13101119. The next prime is 13101157. The reversal of 13101137 is 73110131.

13101137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73110131 = 292521039.

It is not a de Polignac number, because 13101137 - 26 = 13101073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13101157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935789 + ... + 935802.

It is an arithmetic number, because the mean of its divisors is an integer number (3743184).

Almost surely, 213101137 is an apocalyptic number.

It is an amenable number.

13101137 is a deficient number, since it is larger than the sum of its proper divisors (1871599).

13101137 is an equidigital number, since it uses as much as digits as its factorization.

13101137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871598.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 13101137 is about 3619.5492813332. The cubic root of 13101137 is about 235.7416556788.

Adding to 13101137 its reverse (73110131), we get a palindrome (86211268).

The spelling of 13101137 in words is "thirteen million, one hundred one thousand, one hundred thirty-seven".

Divisors: 1 7 1871591 13101137