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51080562 = 23213239491
BaseRepresentation
bin1100001011011…
…0110101110010
310120010011100200
43002312311302
5101034034222
65022500030
71160114631
oct302666562
9116104320
1051080562
1126919645
1215134616
13a7761b0
146ad9518
15473eeac
hex30b6d72

51080562 has 48 divisors (see below), whose sum is σ = 124383168. Its totient is φ = 15032160.

The previous prime is 51080551. The next prime is 51080567. The reversal of 51080562 is 26508015.

It is not an unprimeable number, because it can be changed into a prime (51080567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 637 + ... + 10127.

It is an arithmetic number, because the mean of its divisors is an integer number (2591316).

Almost surely, 251080562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51080562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62191584).

51080562 is an abundant number, since it is smaller than the sum of its proper divisors (73302606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51080562 is a wasteful number, since it uses less digits than its factorization.

51080562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9535 (or 9532 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 51080562 is about 7147.0666710197. The cubic root of 51080562 is about 371.0381412050.

Adding to 51080562 its reverse (26508015), we get a palindrome (77588577).

The spelling of 51080562 in words is "fifty-one million, eighty thousand, five hundred sixty-two".

Divisors: 1 2 3 6 9 13 18 23 26 39 46 69 78 117 138 207 234 299 414 598 897 1794 2691 5382 9491 18982 28473 56946 85419 123383 170838 218293 246766 370149 436586 654879 740298 1110447 1309758 1964637 2220894 2837809 3929274 5675618 8513427 17026854 25540281 51080562