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23205532 = 2277311353
BaseRepresentation
bin101100010000…
…1011010011100
31121122222000011
41120201122130
521420034112
62145213004
7401146420
oct130413234
947588004
1023205532
111210a729
127931164
134a664ac
143120b80
152085aa7
hex162169c

23205532 has 24 divisors (see below), whose sum is σ = 47050976. Its totient is φ = 9808128.

The previous prime is 23205521. The next prime is 23205541. The reversal of 23205532 is 23550232.

It is a congruent number.

It is an unprimeable number.

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, 3633 + ... + 7720.

Almost surely, 223205532 is an apocalyptic number.

It is an amenable number.

23205532 is an abundant number, since it is smaller than the sum of its proper divisors (23845444).

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

23205532 is a wasteful number, since it uses less digits than its factorization.

23205532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11437 (or 11435 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 23205532 is about 4817.2120567814. The cubic root of 23205532 is about 285.2312967956.

Adding to 23205532 its reverse (23550232), we get a palindrome (46755764).

The spelling of 23205532 in words is "twenty-three million, two hundred five thousand, five hundred thirty-two".

Divisors: 1 2 4 7 14 28 73 146 292 511 1022 2044 11353 22706 45412 79471 158942 317884 828769 1657538 3315076 5801383 11602766 23205532