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87234 = 2373167
BaseRepresentation
bin10101010011000010
311102122220
4111103002
510242414
61511510
7512220
oct252302
9142586
1087234
115a5a4
1242596
1330924
1423b10
151aca9
hex154c2

87234 has 32 divisors (see below), whose sum is σ = 208896. Its totient is φ = 23760.

The previous prime is 87223. The next prime is 87251. The reversal of 87234 is 43278.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1269 + ... + 1335.

It is an arithmetic number, because the mean of its divisors is an integer number (6528).

287234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104448).

87234 is an abundant number, since it is smaller than the sum of its proper divisors (121662).

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

87234 is a wasteful number, since it uses less digits than its factorization.

87234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110.

The product of its digits is 1344, while the sum is 24.

The square root of 87234 is about 295.3540248583. The cubic root of 87234 is about 44.3501672869.

Subtracting from 87234 its reverse (43278), we obtain a triangular number (43956 = T296).

The spelling of 87234 in words is "eighty-seven thousand, two hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 31 42 62 67 93 134 186 201 217 402 434 469 651 938 1302 1407 2077 2814 4154 6231 12462 14539 29078 43617 87234