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51160772 = 2213983861
BaseRepresentation
bin1100001100101…
…0011011000100
310120021020101102
43003022123010
5101044121042
65024315232
71160600525
oct303123304
9116236342
1051160772
1126973933
1215172b18
13a7a3860
146b1a84c
154758b32
hex30ca6c4

51160772 has 12 divisors (see below), whose sum is σ = 96418476. Its totient is φ = 23612640.

The previous prime is 51160723. The next prime is 51160777. The reversal of 51160772 is 27706115.

It can be written as a sum of positive squares in 2 ways, for example, as 14485636 + 36675136 = 3806^2 + 6056^2 .

It is not an unprimeable number, because it can be changed into a prime (51160777) 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, 491879 + ... + 491982.

It is an arithmetic number, because the mean of its divisors is an integer number (8034873).

Almost surely, 251160772 is an apocalyptic number.

51160772 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51160772 is a deficient number, since it is larger than the sum of its proper divisors (45257704).

51160772 is a wasteful number, since it uses less digits than its factorization.

51160772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983878 (or 983876 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 51160772 is about 7152.6758629201. The cubic root of 51160772 is about 371.2322489973.

Adding to 51160772 its reverse (27706115), we get a palindrome (78866887).

The spelling of 51160772 in words is "fifty-one million, one hundred sixty thousand, seven hundred seventy-two".

Divisors: 1 2 4 13 26 52 983861 1967722 3935444 12790193 25580386 51160772