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23930961 = 37976987
BaseRepresentation
bin101101101001…
…0100001010001
31200000211002220
41123102201101
522111242321
62212531253
7410260365
oct133224121
950024086
1023930961
111256575a
128020b29
134c5b742
14326d2a5
15217a9c6
hex16d2851

23930961 has 4 divisors (see below), whose sum is σ = 31907952. Its totient is φ = 15953972.

The previous prime is 23930953. The next prime is 23930981. The reversal of 23930961 is 16903932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23930961 - 23 = 23930953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23930941) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3988491 + ... + 3988496.

It is an arithmetic number, because the mean of its divisors is an integer number (7976988).

Almost surely, 223930961 is an apocalyptic number.

It is an amenable number.

23930961 is a deficient number, since it is larger than the sum of its proper divisors (7976991).

23930961 is an equidigital number, since it uses as much as digits as its factorization.

23930961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7976990.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 23930961 is about 4891.9281474691. The cubic root of 23930961 is about 288.1730610127.

The spelling of 23930961 in words is "twenty-three million, nine hundred thirty thousand, nine hundred sixty-one".

Divisors: 1 3 7976987 23930961