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51104443 = 135966629
BaseRepresentation
bin1100001011110…
…0101010111011
310120011101010011
43002330222323
5101040320233
65023202351
71160244355
oct302745273
9116141104
1051104443
1126935585
12151463b7
13a784020
146b040d5
1547470cd
hex30bcabb

51104443 has 8 divisors (see below), whose sum is σ = 55969200. Its totient is φ = 46373088.

The previous prime is 51104407. The next prime is 51104447. The reversal of 51104443 is 34440115.

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

It is a cyclic number.

It is not a de Polignac number, because 51104443 - 221 = 49007291 is a prime.

It is a super-2 number, since 2×511044432 = 5223328188680498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51104447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32548 + ... + 34081.

It is an arithmetic number, because the mean of its divisors is an integer number (6996150).

Almost surely, 251104443 is an apocalyptic number.

51104443 is a deficient number, since it is larger than the sum of its proper divisors (4864757).

51104443 is a wasteful number, since it uses less digits than its factorization.

51104443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66701.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 51104443 is about 7148.7371612055. The cubic root of 51104443 is about 371.0959543340.

Adding to 51104443 its reverse (34440115), we get a palindrome (85544558).

The spelling of 51104443 in words is "fifty-one million, one hundred four thousand, four hundred forty-three".

Divisors: 1 13 59 767 66629 866177 3931111 51104443