Search a number
-
+
23457992 = 2319315193
BaseRepresentation
bin101100101111…
…1000011001000
31122010210022112
41121133003020
522001123432
62154441452
7403250435
oct131370310
948123275
1023457992
1112272378
127a33288
134b2438c
143188b8c
1520d57b2
hex165f0c8

23457992 has 16 divisors (see below), whose sum is σ = 44214540. Its totient is φ = 11667456.

The previous prime is 23457983. The next prime is 23458021. The reversal of 23457992 is 29975432.

It can be written as a sum of positive squares in 2 ways, for example, as 22600516 + 857476 = 4754^2 + 926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6053 + ... + 9140.

Almost surely, 223457992 is an apocalyptic number.

It is an amenable number.

23457992 is a deficient number, since it is larger than the sum of its proper divisors (20756548).

23457992 is a wasteful number, since it uses less digits than its factorization.

23457992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392 (or 15388 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 23457992 is about 4843.3451250143. The cubic root of 23457992 is about 286.2619407311.

The spelling of 23457992 in words is "twenty-three million, four hundred fifty-seven thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 193 386 772 1544 15193 30386 60772 121544 2932249 5864498 11728996 23457992