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51275804 = 2253241867
BaseRepresentation
bin1100001110011…
…0100000011100
310120111002011212
43003212200130
5101111311204
65031003552
71161560066
oct303464034
9116432155
1051275804
1126a422a8
12152095b8
13a814018
146b4a736
15477cc6e
hex30e681c

51275804 has 12 divisors (see below), whose sum is σ = 91426104. Its totient is φ = 25154064.

The previous prime is 51275801. The next prime is 51275827. The reversal of 51275804 is 40857215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51275801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120722 + ... + 121145.

It is an arithmetic number, because the mean of its divisors is an integer number (7618842).

Almost surely, 251275804 is an apocalyptic number.

It is an amenable number.

51275804 is a deficient number, since it is larger than the sum of its proper divisors (40150300).

51275804 is a wasteful number, since it uses less digits than its factorization.

51275804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241924 (or 241922 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 51275804 is about 7160.7125343781. The cubic root of 51275804 is about 371.5102720529.

The spelling of 51275804 in words is "fifty-one million, two hundred seventy-five thousand, eight hundred four".

Divisors: 1 2 4 53 106 212 241867 483734 967468 12818951 25637902 51275804