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23131246 = 2191913187
BaseRepresentation
bin101100000111…
…1010001101110
31121112012002211
41120033101232
521410144441
62143441034
7400420015
oct130172156
947465084
1023131246
1112069936
1278b617a
134a3b738
143101a7c
15206da81
hex160f46e

23131246 has 16 divisors (see below), whose sum is σ = 36725760. Its totient is φ = 10896120.

The previous prime is 23131231. The next prime is 23131249. The reversal of 23131246 is 64213132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5665 + ... + 8851.

It is an arithmetic number, because the mean of its divisors is an integer number (2295360).

Almost surely, 223131246 is an apocalyptic number.

23131246 is a deficient number, since it is larger than the sum of its proper divisors (13594514).

23131246 is a wasteful number, since it uses less digits than its factorization.

23131246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399.

The product of its digits is 864, while the sum is 22.

The square root of 23131246 is about 4809.4953997275. The cubic root of 23131246 is about 284.9266087827.

Adding to 23131246 its reverse (64213132), we get a palindrome (87344378).

The spelling of 23131246 in words is "twenty-three million, one hundred thirty-one thousand, two hundred forty-six".

Divisors: 1 2 19 38 191 382 3187 3629 6374 7258 60553 121106 608717 1217434 11565623 23131246