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23930317 = 43556519
BaseRepresentation
bin101101101001…
…0010111001101
31200000210020001
41123102113031
522111232232
62212524301
7410255455
oct133222715
950023201
1023930317
1112565224
128020691
134c5b368
14326cd65
15217a6e7
hex16d25cd

23930317 has 4 divisors (see below), whose sum is σ = 24486880. Its totient is φ = 23373756.

The previous prime is 23930303. The next prime is 23930321. The reversal of 23930317 is 71303932.

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 23930317 - 211 = 23928269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23930377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278217 + ... + 278302.

It is an arithmetic number, because the mean of its divisors is an integer number (6121720).

Almost surely, 223930317 is an apocalyptic number.

It is an amenable number.

23930317 is a deficient number, since it is larger than the sum of its proper divisors (556563).

23930317 is an equidigital number, since it uses as much as digits as its factorization.

23930317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556562.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 23930317 is about 4891.8623243096. The cubic root of 23930317 is about 288.1704760056.

The spelling of 23930317 in words is "twenty-three million, nine hundred thirty thousand, three hundred seventeen".

Divisors: 1 43 556519 23930317