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51152163 = 371240151
BaseRepresentation
bin1100001100100…
…0010100100011
310120020210120120
43003020110203
5101043332123
65024211323
71160533446
oct303102443
9116223516
1051152163
1126968417
1215169b43
13a79c96a
146b1765d
1547562e3
hex30c8523

51152163 has 8 divisors (see below), whose sum is σ = 69163776. Its totient is φ = 33621000.

The previous prime is 51152159. The next prime is 51152173. The reversal of 51152163 is 36125115.

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

It is not a de Polignac number, because 51152163 - 22 = 51152159 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (51152113) 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, 119863 + ... + 120288.

It is an arithmetic number, because the mean of its divisors is an integer number (8645472).

Almost surely, 251152163 is an apocalyptic number.

51152163 is a deficient number, since it is larger than the sum of its proper divisors (18011613).

51152163 is a wasteful number, since it uses less digits than its factorization.

51152163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240225.

The product of its digits is 900, while the sum is 24.

The square root of 51152163 is about 7152.0740348517. The cubic root of 51152163 is about 371.2114249845.

Adding to 51152163 its reverse (36125115), we get a palindrome (87277278).

It can be divided in two parts, 51152 and 163, that added together give a palindrome (51315).

The spelling of 51152163 in words is "fifty-one million, one hundred fifty-two thousand, one hundred sixty-three".

Divisors: 1 3 71 213 240151 720453 17050721 51152163