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51303434 = 2713281887
BaseRepresentation
bin1100001110110…
…1010000001010
310120112111002012
43003231100022
5101113202214
65031335522
71162033460
oct303552012
9116474065
1051303434
1126a61036
12152215a2
13a823780
146b56830
15478603e
hex30ed40a

51303434 has 16 divisors (see below), whose sum is σ = 94714368. Its totient is φ = 20295792.

The previous prime is 51303383. The next prime is 51303457. The reversal of 51303434 is 43430315.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 140762 + ... + 141125.

It is an arithmetic number, because the mean of its divisors is an integer number (5919648).

Almost surely, 251303434 is an apocalyptic number.

51303434 is a deficient number, since it is larger than the sum of its proper divisors (43410934).

51303434 is a wasteful number, since it uses less digits than its factorization.

51303434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281909.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 51303434 is about 7162.6415518299. The cubic root of 51303434 is about 371.5769895872.

Adding to 51303434 its reverse (43430315), we get a palindrome (94733749).

The spelling of 51303434 in words is "fifty-one million, three hundred three thousand, four hundred thirty-four".

Divisors: 1 2 7 13 14 26 91 182 281887 563774 1973209 3664531 3946418 7329062 25651717 51303434