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87522 = 2329503
BaseRepresentation
bin10101010111100010
311110001120
4111113202
510300042
61513110
7513111
oct252742
9143046
1087522
115a836
1242796
1330ab6
1423c78
151adec
hex155e2

87522 has 16 divisors (see below), whose sum is σ = 181440. Its totient is φ = 28112.

The previous prime is 87517. The next prime is 87523. The reversal of 87522 is 22578.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 87492 and 87501.

It is not an unprimeable number, because it can be changed into a prime (87523) 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, 78 + ... + 425.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

287522 is an apocalyptic number.

87522 is an abundant number, since it is smaller than the sum of its proper divisors (93918).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90720).

87522 is a wasteful number, since it uses less digits than its factorization.

87522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537.

The product of its digits is 1120, while the sum is 24.

The square root of 87522 is about 295.8411736050. The cubic root of 87522 is about 44.3989205159.

The spelling of 87522 in words is "eighty-seven thousand, five hundred twenty-two".

Divisors: 1 2 3 6 29 58 87 174 503 1006 1509 3018 14587 29174 43761 87522