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23978552 = 2313230563
BaseRepresentation
bin101101101111…
…0001000111000
31200010020101112
41123132020320
522114303202
62213535452
7410546213
oct133361070
950106345
1023978552
1112598494
128044588
134c772c0
14328277a
152189b52
hex16de238

23978552 has 16 divisors (see below), whose sum is σ = 48418440. Its totient is φ = 11066976.

The previous prime is 23978543. The next prime is 23978557. The reversal of 23978552 is 25587932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23978557) 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 3 ways as a sum of consecutive naturals, for example, 115178 + ... + 115385.

Almost surely, 223978552 is an apocalyptic number.

It is an amenable number.

23978552 is an abundant number, since it is smaller than the sum of its proper divisors (24439888).

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

23978552 is a wasteful number, since it uses less digits than its factorization.

23978552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230582 (or 230578 counting only the distinct ones).

The product of its digits is 151200, while the sum is 41.

The square root of 23978552 is about 4896.7899689490. The cubic root of 23978552 is about 288.3639624280.

The spelling of 23978552 in words is "twenty-three million, nine hundred seventy-eight thousand, five hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 104 230563 461126 922252 1844504 2997319 5994638 11989276 23978552