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52816086 = 23219389397
BaseRepresentation
bin1100100101111…
…0100011010110
310200101100001100
43021132203112
5102010103321
65124010530
71210633521
oct311364326
9120340040
1052816086
11278a4564
1215830a46
13ac3312b
14702bbb8
154984326
hex325e8d6

52816086 has 48 divisors (see below), whose sum is σ = 121071600. Its totient is φ = 16593984.

The previous prime is 52816079. The next prime is 52816091. The reversal of 52816086 is 68061825.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 52816086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132840 + ... + 133236.

It is an arithmetic number, because the mean of its divisors is an integer number (2522325).

Almost surely, 252816086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52816086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60535800).

52816086 is an abundant number, since it is smaller than the sum of its proper divisors (68255514).

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

52816086 is a wasteful number, since it uses less digits than its factorization.

52816086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 52816086 is about 7267.4676469868. The cubic root of 52816086 is about 375.1935853820.

The spelling of 52816086 in words is "fifty-two million, eight hundred sixteen thousand, eighty-six".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 389 397 778 794 1167 1191 2334 2382 3501 3573 7002 7146 7391 7543 14782 15086 22173 22629 44346 45258 66519 67887 133038 135774 154433 308866 463299 926598 1389897 2779794 2934227 5868454 8802681 17605362 26408043 52816086