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23307137 = 713812411
BaseRepresentation
bin101100011101…
…0001110000001
31121212010101022
41120322032001
521431312022
62151315225
7402051560
oct130721601
947763338
1023307137
1112179aa7
12797bb15
134aa0809
143149bd7
1520a5c42
hex163a381

23307137 has 8 divisors (see below), whose sum is σ = 26667072. Its totient is φ = 19954800.

The previous prime is 23307113. The next prime is 23307139. The reversal of 23307137 is 73170332.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23307137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23307139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8462 + ... + 10872.

It is an arithmetic number, because the mean of its divisors is an integer number (3333384).

Almost surely, 223307137 is an apocalyptic number.

It is an amenable number.

23307137 is a deficient number, since it is larger than the sum of its proper divisors (3359935).

23307137 is a wasteful number, since it uses less digits than its factorization.

23307137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3799.

The product of its (nonzero) digits is 2646, while the sum is 26.

The square root of 23307137 is about 4827.7465757846. The cubic root of 23307137 is about 285.6469840408.

Adding to 23307137 its reverse (73170332), we get a palindrome (96477469).

The spelling of 23307137 in words is "twenty-three million, three hundred seven thousand, one hundred thirty-seven".

Divisors: 1 7 1381 2411 9667 16877 3329591 23307137