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23993171 = 174730029
BaseRepresentation
bin101101110000…
…1101101010011
31200010222102222
41123201231103
522120240141
62214131255
7410636636
oct133415523
950128388
1023993171
11125a8474
128050b2b
134c80b57
143287c1d
15218e14b
hex16e1b53

23993171 has 8 divisors (see below), whose sum is σ = 25945920. Its totient is φ = 22100608.

The previous prime is 23993161. The next prime is 23993173. The reversal of 23993171 is 17139932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23993171 - 210 = 23992147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23993173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14216 + ... + 15813.

It is an arithmetic number, because the mean of its divisors is an integer number (3243240).

Almost surely, 223993171 is an apocalyptic number.

23993171 is a deficient number, since it is larger than the sum of its proper divisors (1952749).

23993171 is a wasteful number, since it uses less digits than its factorization.

23993171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30093.

The product of its digits is 10206, while the sum is 35.

The square root of 23993171 is about 4898.2824540853. The cubic root of 23993171 is about 288.4225527931.

The spelling of 23993171 in words is "twenty-three million, nine hundred ninety-three thousand, one hundred seventy-one".

Divisors: 1 17 47 799 30029 510493 1411363 23993171