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23422131 = 325349103
BaseRepresentation
bin101100101011…
…0010010110011
31122001222010100
41121112102303
521444002011
62154003443
7403041045
oct131262263
948058110
1023422131
1112248437
127a16583
134b10c65
143179a95
1520c9d56
hex16564b3

23422131 has 12 divisors (see below), whose sum is σ = 34471008. Its totient is φ = 15319824.

The previous prime is 23422129. The next prime is 23422171. The reversal of 23422131 is 13122432.

It is not a de Polignac number, because 23422131 - 21 = 23422129 is a prime.

It is a super-2 number, since 2×234221312 = 1097192441162322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23422171) 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 11 ways as a sum of consecutive naturals, for example, 24075 + ... + 25028.

It is an arithmetic number, because the mean of its divisors is an integer number (2872584).

Almost surely, 223422131 is an apocalyptic number.

23422131 is a deficient number, since it is larger than the sum of its proper divisors (11048877).

23422131 is a wasteful number, since it uses less digits than its factorization.

23422131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49162 (or 49159 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 23422131 is about 4839.6416189631. The cubic root of 23422131 is about 286.1159936690.

Adding to 23422131 its reverse (13122432), we get a palindrome (36544563).

The spelling of 23422131 in words is "twenty-three million, four hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 3 9 53 159 477 49103 147309 441927 2602459 7807377 23422131