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51713180 = 2252585659
BaseRepresentation
bin1100010101000…
…1010010011100
310121022022010222
43011101102130
5101214310210
65044220512
71165361201
oct305212234
9117268128
1051713180
1127210972
121539a738
13a93811c
146c21ca8
154817655
hex315149c

51713180 has 12 divisors (see below), whose sum is σ = 108597720. Its totient is φ = 20685264.

The previous prime is 51713173. The next prime is 51713209. The reversal of 51713180 is 8131715.

It is a congruent number.

It is an unprimeable number.

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, 1292810 + ... + 1292849.

It is an arithmetic number, because the mean of its divisors is an integer number (9049810).

Almost surely, 251713180 is an apocalyptic number.

It is an amenable number.

51713180 is an abundant number, since it is smaller than the sum of its proper divisors (56884540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51713180 is a wasteful number, since it uses less digits than its factorization.

51713180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585668 (or 2585666 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 51713180 is about 7191.1876626883. The cubic root of 51713180 is about 372.5635943854.

Adding to 51713180 its reverse (8131715), we get a palindrome (59844895).

The spelling of 51713180 in words is "fifty-one million, seven hundred thirteen thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 2585659 5171318 10342636 12928295 25856590 51713180