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51045308 = 2271179737
BaseRepresentation
bin1100001010111…
…0001110111100
310120001100222222
43002232032330
5101031422213
65022024512
71156610066
oct302561674
9116040888
1051045308
11268a5106
1215118138
13a763132
146aca736
154734808
hex30ae3bc

51045308 has 12 divisors (see below), whose sum is σ = 90587952. Its totient is φ = 25163040.

The previous prime is 51045301. The next prime is 51045353. The reversal of 51045308 is 80354015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51045301) 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, 89585 + ... + 90152.

It is an arithmetic number, because the mean of its divisors is an integer number (7548996).

Almost surely, 251045308 is an apocalyptic number.

It is an amenable number.

51045308 is a deficient number, since it is larger than the sum of its proper divisors (39542644).

51045308 is a wasteful number, since it uses less digits than its factorization.

51045308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179812 (or 179810 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 51045308 is about 7144.5999188198. The cubic root of 51045308 is about 370.9527624196.

The spelling of 51045308 in words is "fifty-one million, forty-five thousand, three hundred eight".

Divisors: 1 2 4 71 142 284 179737 359474 718948 12761327 25522654 51045308