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23271132 = 2232278543
BaseRepresentation
bin101100011000…
…1011011011100
31121210021222210
41120301123130
521424134012
62150440420
7401541603
oct130613334
947707883
1023271132
1112154a45
127963110
134a8a301
14313aa3a
15209a23c
hex16316dc

23271132 has 24 divisors (see below), whose sum is σ = 54544896. Its totient is φ = 7721968.

The previous prime is 23271119. The next prime is 23271133. The reversal of 23271132 is 23117232.

It is a super-2 number, since 2×232711322 = 1083091169122848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23271099 and 23271108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23271133) 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, 1548 + ... + 6995.

It is an arithmetic number, because the mean of its divisors is an integer number (2272704).

Almost surely, 223271132 is an apocalyptic number.

It is an amenable number.

23271132 is an abundant number, since it is smaller than the sum of its proper divisors (31273764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23271132 is a wasteful number, since it uses less digits than its factorization.

23271132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8777 (or 8775 counting only the distinct ones).

The product of its digits is 504, while the sum is 21.

The square root of 23271132 is about 4824.0161691271. The cubic root of 23271132 is about 285.4998185299.

Adding to 23271132 its reverse (23117232), we get a palindrome (46388364).

The spelling of 23271132 in words is "twenty-three million, two hundred seventy-one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 227 454 681 908 1362 2724 8543 17086 25629 34172 51258 102516 1939261 3878522 5817783 7757044 11635566 23271132