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51152908 = 2212788227
BaseRepresentation
bin1100001100100…
…0100000001100
310120020211121011
43003020200030
5101043343113
65024215004
71160535562
oct303104014
9116224534
1051152908
1126968a34
121516a464
13a7a00c1
146b17a32
15475663d
hex30c880c

51152908 has 6 divisors (see below), whose sum is σ = 89517596. Its totient is φ = 25576452.

The previous prime is 51152903. The next prime is 51152909. The reversal of 51152908 is 80925115.

It is a self number, because there is not a number n which added to its sum of digits gives 51152908.

It is not an unprimeable number, because it can be changed into a prime (51152903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6394110 + ... + 6394117.

Almost surely, 251152908 is an apocalyptic number.

It is an amenable number.

51152908 is a deficient number, since it is larger than the sum of its proper divisors (38364688).

51152908 is a wasteful number, since it uses less digits than its factorization.

51152908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12788231 (or 12788229 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 51152908 is about 7152.1261174563. The cubic root of 51152908 is about 371.2132271316.

The spelling of 51152908 in words is "fifty-one million, one hundred fifty-two thousand, nine hundred eight".

Divisors: 1 2 4 12788227 25576454 51152908