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23655152 = 241977813
BaseRepresentation
bin101101000111…
…1001011110000
31122111210202202
41122033023300
522023431102
62203002332
7405031313
oct132171360
948453682
1023655152
1112397514
127b093a8
134b93041
1431da97a
152123e02
hex168f2f0

23655152 has 20 divisors (see below), whose sum is σ = 48244680. Its totient is φ = 11204928.

The previous prime is 23655131. The next prime is 23655157. The reversal of 23655152 is 25155632.

It is a happy number.

It is a super-2 number, since 2×236551522 = 1119132432286208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23655157) 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, 38603 + ... + 39210.

It is an arithmetic number, because the mean of its divisors is an integer number (2412234).

Almost surely, 223655152 is an apocalyptic number.

It is an amenable number.

23655152 is an abundant number, since it is smaller than the sum of its proper divisors (24589528).

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

23655152 is a wasteful number, since it uses less digits than its factorization.

23655152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77840 (or 77834 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 23655152 is about 4863.6562378523. The cubic root of 23655152 is about 287.0616968454.

The spelling of 23655152 in words is "twenty-three million, six hundred fifty-five thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 19 38 76 152 304 77813 155626 311252 622504 1245008 1478447 2956894 5913788 11827576 23655152