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51163029 = 331999733
BaseRepresentation
bin1100001100101…
…0111110010101
310120021100111000
43003022332111
5101044204104
65024333513
71160610231
oct303127625
9116240430
1051163029
11269755a5
1215174299
13a7a48a8
146b1b5c1
154759639
hex30caf95

51163029 has 16 divisors (see below), whose sum is σ = 79787200. Its totient is φ = 32313168.

The previous prime is 51163027. The next prime is 51163031. The reversal of 51163029 is 92036115.

51163029 is a `hidden beast` number, since 5 + 1 + 1 + 630 + 29 = 666.

It is an interprime number because it is at equal distance from previous prime (51163027) and next prime (51163031).

It is not a de Polignac number, because 51163029 - 21 = 51163027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51162993 and 51163011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51163027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49354 + ... + 50379.

It is an arithmetic number, because the mean of its divisors is an integer number (4986700).

Almost surely, 251163029 is an apocalyptic number.

It is an amenable number.

51163029 is a deficient number, since it is larger than the sum of its proper divisors (28624171).

51163029 is a wasteful number, since it uses less digits than its factorization.

51163029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99761 (or 99755 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 51163029 is about 7152.8336343019. The cubic root of 51163029 is about 371.2377079901.

The spelling of 51163029 in words is "fifty-one million, one hundred sixty-three thousand, twenty-nine".

Divisors: 1 3 9 19 27 57 171 513 99733 299199 897597 1894927 2692791 5684781 17054343 51163029