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51290108 = 2267971973
BaseRepresentation
bin1100001110100…
…1111111111100
310120111210210122
43003221333330
5101112240413
65031154112
71161646562
oct303517774
9116453718
1051290108
1126a52021
1215215938
13a81a69c
146b51a32
154782108
hex30e9ffc

51290108 has 24 divisors (see below), whose sum is σ = 92083152. Its totient is φ = 24989184.

The previous prime is 51290053. The next prime is 51290119. The reversal of 51290108 is 80109215.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25010 + ... + 26982.

It is an arithmetic number, because the mean of its divisors is an integer number (3836798).

Almost surely, 251290108 is an apocalyptic number.

It is an amenable number.

51290108 is a deficient number, since it is larger than the sum of its proper divisors (40793044).

51290108 is a wasteful number, since it uses less digits than its factorization.

51290108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141 (or 2139 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 51290108 is about 7161.7112480189. The cubic root of 51290108 is about 371.5448145886.

The spelling of 51290108 in words is "fifty-one million, two hundred ninety thousand, one hundred eight".

Divisors: 1 2 4 67 97 134 194 268 388 1973 3946 6499 7892 12998 25996 132191 191381 264382 382762 528764 765524 12822527 25645054 51290108