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51008794 = 2175314549
BaseRepresentation
bin1100001010010…
…1010100011010
310112222111220121
43002211110122
5101024240134
65021143454
71156365454
oct302452432
9115874817
1051008794
112687a731
12150bab8a
13a74c625
146abb2d4
154728ab4
hex30a551a

51008794 has 8 divisors (see below), whose sum is σ = 76562100. Its totient is φ = 25488096.

The previous prime is 51008791. The next prime is 51008801. The reversal of 51008794 is 49780015.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50225569 + 783225 = 7087^2 + 885^2 .

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

It is not an unprimeable number, because it can be changed into a prime (51008791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3769 + ... + 10780.

Almost surely, 251008794 is an apocalyptic number.

51008794 is a deficient number, since it is larger than the sum of its proper divisors (25553306).

51008794 is a wasteful number, since it uses less digits than its factorization.

51008794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16304.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 51008794 is about 7142.0441051565. The cubic root of 51008794 is about 370.8642906894.

The spelling of 51008794 in words is "fifty-one million, eight thousand, seven hundred ninety-four".

Divisors: 1 2 1753 3506 14549 29098 25504397 51008794