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23275144 = 232909393
BaseRepresentation
bin101100011001…
…0011010001000
31121210111111101
41120302122020
521424301034
62150511144
7401556364
oct130623210
947714441
1023275144
1112157a62
1279654b4
134a8c099
14313c2a4
15209b514
hex1632688

23275144 has 8 divisors (see below), whose sum is σ = 43640910. Its totient is φ = 11637568.

The previous prime is 23275129. The next prime is 23275151. The reversal of 23275144 is 44157232.

It can be written as a sum of positive squares in only one way, i.e., 13972644 + 9302500 = 3738^2 + 3050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1454689 + ... + 1454704.

Almost surely, 223275144 is an apocalyptic number.

It is an amenable number.

23275144 is a deficient number, since it is larger than the sum of its proper divisors (20365766).

23275144 is a wasteful number, since it uses less digits than its factorization.

23275144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909399 (or 2909395 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 23275144 is about 4824.4319872914. The cubic root of 23275144 is about 285.5162245425.

The spelling of 23275144 in words is "twenty-three million, two hundred seventy-five thousand, one hundred forty-four".

Divisors: 1 2 4 8 2909393 5818786 11637572 23275144