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51053013 = 3211515687
BaseRepresentation
bin1100001011000…
…0000111010101
310120001202120100
43002300013111
5101032144023
65022124313
71156641414
oct302600725
9116052510
1051053013
11268aa980
1215120699
13a7667ab
146acd47b
154736c43
hex30b01d5

51053013 has 12 divisors (see below), whose sum is σ = 80447328. Its totient is φ = 30941160.

The previous prime is 51053011. The next prime is 51053027. The reversal of 51053013 is 31035015.

It is a happy number.

It is not a de Polignac number, because 51053013 - 21 = 51053011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51053011) 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 11 ways as a sum of consecutive naturals, for example, 257745 + ... + 257942.

It is an arithmetic number, because the mean of its divisors is an integer number (6703944).

Almost surely, 251053013 is an apocalyptic number.

It is an amenable number.

51053013 is a deficient number, since it is larger than the sum of its proper divisors (29394315).

51053013 is a wasteful number, since it uses less digits than its factorization.

51053013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515704 (or 515701 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 51053013 is about 7145.1391169102. The cubic root of 51053013 is about 370.9714258864.

Adding to 51053013 its reverse (31035015), we get a palindrome (82088028).

It can be divided in two parts, 5105 and 3013, that added together give a palindrome (8118).

The spelling of 51053013 in words is "fifty-one million, fifty-three thousand, thirteen".

Divisors: 1 3 9 11 33 99 515687 1547061 4641183 5672557 17017671 51053013