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87894 = 23219257
BaseRepresentation
bin10101011101010110
311110120100
4111131112
510303034
61514530
7514152
oct253526
9143510
1087894
1160044
1242a46
1331011
1424062
151b099
hex15756

87894 has 24 divisors (see below), whose sum is σ = 201240. Its totient is φ = 27648.

The previous prime is 87887. The next prime is 87911. The reversal of 87894 is 49878.

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

It is a congruent number.

It is an unprimeable number.

87894 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214 + ... + 470.

It is an arithmetic number, because the mean of its divisors is an integer number (8385).

287894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100620).

87894 is an abundant number, since it is smaller than the sum of its proper divisors (113346).

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

87894 is a wasteful number, since it uses less digits than its factorization.

87894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 281 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 87894 is about 296.4692226859. The cubic root of 87894 is about 44.4617354018.

The spelling of 87894 in words is "eighty-seven thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 257 342 514 771 1542 2313 4626 4883 9766 14649 29298 43947 87894