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23113279 = 79833359
BaseRepresentation
bin101100000101…
…0111000111111
31121111021110101
41120022320333
521404111104
62143221531
7400313440
oct130127077
947437411
1023113279
1112057392
1278a78a7
134a334c7
1430d92c7
1520685a4
hex160ae3f

23113279 has 8 divisors (see below), whose sum is σ = 26449920. Its totient is φ = 19785336.

The previous prime is 23113273. The next prime is 23113283. The reversal of 23113279 is 97231132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23113279 is a prime.

It is a super-2 number, since 2×231132792 = 1068447332263682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113273) 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, 5202 + ... + 8560.

It is an arithmetic number, because the mean of its divisors is an integer number (3306240).

Almost surely, 223113279 is an apocalyptic number.

23113279 is a deficient number, since it is larger than the sum of its proper divisors (3336641).

23113279 is an equidigital number, since it uses as much as digits as its factorization.

23113279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4349.

The product of its digits is 2268, while the sum is 28.

The square root of 23113279 is about 4807.6271694049. The cubic root of 23113279 is about 284.8528182283.

The spelling of 23113279 in words is "twenty-three million, one hundred thirteen thousand, two hundred seventy-nine".

Divisors: 1 7 983 3359 6881 23513 3301897 23113279