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51360017 = 431816599
BaseRepresentation
bin1100001111101…
…1000100010001
310120122100200212
43003323010101
5101122010032
65032453505
71162360442
oct303730421
9116570625
1051360017
1126a9a5a5
121524a295
13a843457
146b6d2c9
154797bb2
hex30fb111

51360017 has 8 divisors (see below), whose sum is σ = 52852800. Its totient is φ = 49880880.

The previous prime is 51360013. The next prime is 51360019. The reversal of 51360017 is 71006315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51360017 - 22 = 51360013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51359974 and 51360001.

It is not an unprimeable number, because it can be changed into a prime (51360011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4484 + ... + 11082.

It is an arithmetic number, because the mean of its divisors is an integer number (6606600).

Almost surely, 251360017 is an apocalyptic number.

It is an amenable number.

51360017 is a deficient number, since it is larger than the sum of its proper divisors (1492783).

51360017 is a wasteful number, since it uses less digits than its factorization.

51360017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 51360017 is about 7166.5903329268. The cubic root of 51360017 is about 371.7135445528.

The spelling of 51360017 in words is "fifty-one million, three hundred sixty thousand, seventeen".

Divisors: 1 43 181 6599 7783 283757 1194419 51360017