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51315314 = 2191350403
BaseRepresentation
bin1100001111000…
…0001001110010
310120120002101012
43003300021302
5101114042224
65031510522
71162113221
oct303601162
9116502335
1051315314
1126a69a56
1215228442
13a828cbb
146b5acb8
15478980e
hex30f0272

51315314 has 8 divisors (see below), whose sum is σ = 81024240. Its totient is φ = 24307236.

The previous prime is 51315301. The next prime is 51315317. The reversal of 51315314 is 41351315.

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

It is a super-4 number, since 4×513153144 (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51315314.

It is not an unprimeable number, because it can be changed into a prime (51315317) 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, 675164 + ... + 675239.

It is an arithmetic number, because the mean of its divisors is an integer number (10128030).

Almost surely, 251315314 is an apocalyptic number.

51315314 is a deficient number, since it is larger than the sum of its proper divisors (29708926).

51315314 is a wasteful number, since it uses less digits than its factorization.

51315314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350424.

The product of its digits is 900, while the sum is 23.

The square root of 51315314 is about 7163.4708068087. The cubic root of 51315314 is about 371.6056685898.

Adding to 51315314 its reverse (41351315), we get a palindrome (92666629).

The spelling of 51315314 in words is "fifty-one million, three hundred fifteen thousand, three hundred fourteen".

Divisors: 1 2 19 38 1350403 2700806 25657657 51315314