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51580814 = 2131919553
BaseRepresentation
bin1100010011000…
…0111110001110
310121001120120112
43010300332032
5101201041224
65041320022
71164300245
oct304607616
9117046515
1051580814
112713047a
1215336012
13a8bcabc
146bc995c
1547dd30e
hex3130f8e

51580814 has 8 divisors (see below), whose sum is σ = 77433840. Its totient is φ = 25769536.

The previous prime is 51580813. The next prime is 51580831. The reversal of 51580814 is 41808515.

51580814 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 super-3 number, since 3×515808143 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51580811) 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 3 ways as a sum of consecutive naturals, for example, 7139 + ... + 12414.

It is an arithmetic number, because the mean of its divisors is an integer number (9679230).

Almost surely, 251580814 is an apocalyptic number.

51580814 is a deficient number, since it is larger than the sum of its proper divisors (25853026).

51580814 is a wasteful number, since it uses less digits than its factorization.

51580814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20874.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 51580814 is about 7181.9784182355. The cubic root of 51580814 is about 372.2454492605.

The spelling of 51580814 in words is "fifty-one million, five hundred eighty thousand, eight hundred fourteen".

Divisors: 1 2 1319 2638 19553 39106 25790407 51580814