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51480767 = 136164919
BaseRepresentation
bin1100010001100…
…0100010111111
310120212111100002
43010120202333
5101134341032
65035224515
71163402462
oct304304277
9116774302
1051480767
1127072298
12152a813b
13a8863c0
146ba12d9
1547bd862
hex31188bf

51480767 has 8 divisors (see below), whose sum is σ = 56350560. Its totient is φ = 46740960.

The previous prime is 51480757. The next prime is 51480791. The reversal of 51480767 is 76708415.

51480767 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 51480767 - 214 = 51464383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51480767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51480757) 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, 31667 + ... + 33252.

It is an arithmetic number, because the mean of its divisors is an integer number (7043820).

Almost surely, 251480767 is an apocalyptic number.

51480767 is a deficient number, since it is larger than the sum of its proper divisors (4869793).

51480767 is a wasteful number, since it uses less digits than its factorization.

51480767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64993.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 51480767 is about 7175.0098954636. The cubic root of 51480767 is about 372.0046223459.

The spelling of 51480767 in words is "fifty-one million, four hundred eighty thousand, seven hundred sixty-seven".

Divisors: 1 13 61 793 64919 843947 3960059 51480767