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23132552 = 232891569
BaseRepresentation
bin101100000111…
…1100110001000
31121112020220012
41120033212020
521410220202
62143451052
7400423562
oct130174610
947466805
1023132552
111206a913
1278b6a88
134a3c201
143102332
15206e152
hex160f988

23132552 has 8 divisors (see below), whose sum is σ = 43373550. Its totient is φ = 11566272.

The previous prime is 23132521. The next prime is 23132561. The reversal of 23132552 is 25523132.

It can be written as a sum of positive squares in only one way, i.e., 15100996 + 8031556 = 3886^2 + 2834^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×231325522 = 1070229924065408, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 1445777 + ... + 1445792.

Almost surely, 223132552 is an apocalyptic number.

It is an amenable number.

23132552 is a deficient number, since it is larger than the sum of its proper divisors (20240998).

23132552 is a wasteful number, since it uses less digits than its factorization.

23132552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891575 (or 2891571 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 23132552 is about 4809.6311708903. The cubic root of 23132552 is about 284.9319710410.

Adding to 23132552 its reverse (25523132), we get a palindrome (48655684).

The spelling of 23132552 in words is "twenty-three million, one hundred thirty-two thousand, five hundred fifty-two".

Divisors: 1 2 4 8 2891569 5783138 11566276 23132552