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51008347 = 1317230807
BaseRepresentation
bin1100001010010…
…1001101011011
310112222111022001
43002211031123
5101024231342
65021141431
71156364245
oct302451533
9115874261
1051008347
112687a365
12150ba877
13a74c370
146abb095
1547288b7
hex30a535b

51008347 has 8 divisors (see below), whose sum is σ = 58163616. Its totient is φ = 44314752.

The previous prime is 51008341. The next prime is 51008359. The reversal of 51008347 is 74380015.

51008347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51008347 - 27 = 51008219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51008341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115183 + ... + 115624.

It is an arithmetic number, because the mean of its divisors is an integer number (7270452).

Almost surely, 251008347 is an apocalyptic number.

51008347 is a deficient number, since it is larger than the sum of its proper divisors (7155269).

51008347 is a wasteful number, since it uses less digits than its factorization.

51008347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230837.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 51008347 is about 7142.0128115259. The cubic root of 51008347 is about 370.8632073676.

The spelling of 51008347 in words is "fifty-one million, eight thousand, three hundred forty-seven".

Divisors: 1 13 17 221 230807 3000491 3923719 51008347