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51057885 = 3517200227
BaseRepresentation
bin1100001011000…
…1010011011101
310120002000020210
43002301103131
5101032323020
65022203033
71156661544
oct302612335
9116060223
1051057885
11269035aa
1215123479
13a768a88
146ad115b
1547383e0
hex30b14dd

51057885 has 16 divisors (see below), whose sum is σ = 86498496. Its totient is φ = 25628928.

The previous prime is 51057841. The next prime is 51057901. The reversal of 51057885 is 58875015.

51057885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51057885 - 27 = 51057757 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 99859 + ... + 100368.

It is an arithmetic number, because the mean of its divisors is an integer number (5406156).

Almost surely, 251057885 is an apocalyptic number.

It is an amenable number.

51057885 is a deficient number, since it is larger than the sum of its proper divisors (35440611).

51057885 is a wasteful number, since it uses less digits than its factorization.

51057885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200252.

The product of its (nonzero) digits is 56000, while the sum is 39.

The square root of 51057885 is about 7145.4800398574. The cubic root of 51057885 is about 370.9832261386.

The spelling of 51057885 in words is "fifty-one million, fifty-seven thousand, eight hundred eighty-five".

Divisors: 1 3 5 15 17 51 85 255 200227 600681 1001135 3003405 3403859 10211577 17019295 51057885