Search a number
-
+
23161914 = 2321286773
BaseRepresentation
bin101100001011…
…0110000111010
31121120202011200
41120112300322
521412140124
62144235030
7400605306
oct130266072
947522150
1023161914
111208a986
12790ba76
134a4c699
14310cd06
152077bc9
hex1616c3a

23161914 has 12 divisors (see below), whose sum is σ = 50184186. Its totient is φ = 7720632.

The previous prime is 23161891. The next prime is 23161927. The reversal of 23161914 is 41916132.

23161914 is a `hidden beast` number, since 2 + 31 + 619 + 14 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14953689 + 8208225 = 3867^2 + 2865^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 643369 + ... + 643404.

Almost surely, 223161914 is an apocalyptic number.

23161914 is an abundant number, since it is smaller than the sum of its proper divisors (27022272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23161914 is a wasteful number, since it uses less digits than its factorization.

23161914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286781 (or 1286778 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 23161914 is about 4812.6826199117. The cubic root of 23161914 is about 285.0524741790.

The spelling of 23161914 in words is "twenty-three million, one hundred sixty-one thousand, nine hundred fourteen".

Divisors: 1 2 3 6 9 18 1286773 2573546 3860319 7720638 11580957 23161914