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51302641 = 1319229907
BaseRepresentation
bin1100001110110…
…1000011110001
310120112102222211
43003231003301
5101113141031
65031332121
71162031245
oct303550361
9116472884
1051302641
1126a60485
1215221041
13a8232c0
146b56425
154785bb1
hex30ed0f1

51302641 has 16 divisors (see below), whose sum is σ = 58475200. Its totient is φ = 44618688.

The previous prime is 51302633. The next prime is 51302659. The reversal of 51302641 is 14620315.

51302641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51302641 - 23 = 51302633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51302341) 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 in 15 ways as a sum of consecutive naturals, for example, 56110 + ... + 57016.

It is an arithmetic number, because the mean of its divisors is an integer number (3654700).

Almost surely, 251302641 is an apocalyptic number.

It is an amenable number.

51302641 is a deficient number, since it is larger than the sum of its proper divisors (7172559).

51302641 is a wasteful number, since it uses less digits than its factorization.

51302641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 51302641 is about 7162.5861949438. The cubic root of 51302641 is about 371.5750750820.

Adding to 51302641 its reverse (14620315), we get a palindrome (65922956).

The spelling of 51302641 in words is "fifty-one million, three hundred two thousand, six hundred forty-one".

Divisors: 1 13 19 229 247 907 2977 4351 11791 17233 56563 207703 224029 2700139 3946357 51302641