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51010457 = 376197233
BaseRepresentation
bin1100001010010…
…1101110011001
310112222121012012
43002211232121
5101024313312
65021155305
71156403351
oct302455631
9115877165
1051010457
1126880a03
12150bbb35
13a750304
146abbb61
154729322
hex30a5b99

51010457 has 16 divisors (see below), whose sum is σ = 54027792. Its totient is φ = 48107520.

The previous prime is 51010451. The next prime is 51010493. The reversal of 51010457 is 75401015.

51010457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3345241 + 47665216 = 1829^2 + 6904^2 .

It is a cyclic number.

It is not a de Polignac number, because 51010457 - 216 = 50944921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51010451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218813 + ... + 219045.

It is an arithmetic number, because the mean of its divisors is an integer number (3376737).

Almost surely, 251010457 is an apocalyptic number.

It is an amenable number.

51010457 is a deficient number, since it is larger than the sum of its proper divisors (3017335).

51010457 is a wasteful number, since it uses less digits than its factorization.

51010457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 51010457 is about 7142.1605274595. The cubic root of 51010457 is about 370.8683209789.

The spelling of 51010457 in words is "fifty-one million, ten thousand, four hundred fifty-seven".

Divisors: 1 37 61 97 233 2257 3589 5917 8621 14213 22601 218929 525881 836237 1378661 51010457