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52710042 = 23711271421
BaseRepresentation
bin1100100100010…
…0101010011010
310200011221120210
43021010222122
5101443210132
65121431550
71210012410
oct311045232
9120157523
1052710042
1127831920
121579b5b6
13abc6a98
1470012b0
154962bcc
hex3244a9a

52710042 has 64 divisors (see below), whose sum is σ = 132231168. Its totient is φ = 13608000.

The previous prime is 52710041. The next prime is 52710061. The reversal of 52710042 is 24001725.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (52710041) 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 31 ways as a sum of consecutive naturals, for example, 124992 + ... + 125412.

It is an arithmetic number, because the mean of its divisors is an integer number (2066112).

Almost surely, 252710042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52710042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66115584).

52710042 is an abundant number, since it is smaller than the sum of its proper divisors (79521126).

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

52710042 is a wasteful number, since it uses less digits than its factorization.

52710042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 52710042 is about 7260.1681798702. The cubic root of 52710042 is about 374.9423129041.

Adding to 52710042 its reverse (24001725), we get a palindrome (76711767).

The spelling of 52710042 in words is "fifty-two million, seven hundred ten thousand, forty-two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 271 421 462 542 813 842 1263 1626 1897 2526 2947 2981 3794 4631 5691 5894 5962 8841 8943 9262 11382 13893 17682 17886 20867 27786 32417 41734 62601 64834 97251 114091 125202 194502 228182 342273 684546 798637 1255001 1597274 2395911 2510002 3765003 4791822 7530006 8785007 17570014 26355021 52710042