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23112097 = 83278459
BaseRepresentation
bin101100000101…
…0100110100001
31121111012211121
41120022212201
521404041342
62143212241
7400310131
oct130124641
947435747
1023112097
1112056508
1278a7081
134a32ac8
1430d8ac1
152068067
hex160a9a1

23112097 has 4 divisors (see below), whose sum is σ = 23390640. Its totient is φ = 22833556.

The previous prime is 23112083. The next prime is 23112121. The reversal of 23112097 is 79021132.

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 a de Polignac number, because none of the positive numbers 2k-23112097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23112007) 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, 139147 + ... + 139312.

It is an arithmetic number, because the mean of its divisors is an integer number (5847660).

Almost surely, 223112097 is an apocalyptic number.

It is an amenable number.

23112097 is a deficient number, since it is larger than the sum of its proper divisors (278543).

23112097 is an equidigital number, since it uses as much as digits as its factorization.

23112097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278542.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 23112097 is about 4807.5042381677. The cubic root of 23112097 is about 284.8479624082.

The spelling of 23112097 in words is "twenty-three million, one hundred twelve thousand, ninety-seven".

Divisors: 1 83 278459 23112097