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51793161 = 372466341
BaseRepresentation
bin1100010110010…
…0110100001001
310121110100212020
43011210310021
5101224340121
65050035053
71166143320
oct305446411
9117410766
1051793161
1127265a72
1215418a89
13a965654
146c430b7
1548311c6
hex3164d09

51793161 has 8 divisors (see below), whose sum is σ = 78922944. Its totient is φ = 29596080.

The previous prime is 51793141. The next prime is 51793163. The reversal of 51793161 is 16139715.

It is a happy number.

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

It is not a de Polignac number, because 51793161 - 25 = 51793129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51793163) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1233150 + ... + 1233191.

It is an arithmetic number, because the mean of its divisors is an integer number (9865368).

Almost surely, 251793161 is an apocalyptic number.

It is an amenable number.

51793161 is a deficient number, since it is larger than the sum of its proper divisors (27129783).

51793161 is a wasteful number, since it uses less digits than its factorization.

51793161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466351.

The product of its digits is 5670, while the sum is 33.

The square root of 51793161 is about 7196.7465566046. The cubic root of 51793161 is about 372.7555677526.

The spelling of 51793161 in words is "fifty-one million, seven hundred ninety-three thousand, one hundred sixty-one".

Divisors: 1 3 7 21 2466341 7399023 17264387 51793161