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51205034 = 225602517
BaseRepresentation
bin1100001101010…
…1001110101010
310120100111002202
43003111032222
5101102030114
65025300202
71161143546
oct303251652
9116314082
1051205034
11269a4111
1215194662
13a7baa4a
146b2ca26
154766cde
hex30d53aa

51205034 has 4 divisors (see below), whose sum is σ = 76807554. Its totient is φ = 25602516.

The previous prime is 51205031. The next prime is 51205069. The reversal of 51205034 is 43050215.

51205034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43626025 + 7579009 = 6605^2 + 2753^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51204997 and 51205015.

It is not an unprimeable number, because it can be changed into a prime (51205031) 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 as a sum of consecutive naturals, namely, 12801257 + ... + 12801260.

Almost surely, 251205034 is an apocalyptic number.

51205034 is a deficient number, since it is larger than the sum of its proper divisors (25602520).

51205034 is a wasteful number, since it uses less digits than its factorization.

51205034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25602519.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 51205034 is about 7155.7692807971. The cubic root of 51205034 is about 371.3392759559.

Adding to 51205034 its reverse (43050215), we get a palindrome (94255249).

The spelling of 51205034 in words is "fifty-one million, two hundred five thousand, thirty-four".

Divisors: 1 2 25602517 51205034