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87996 = 2237333
BaseRepresentation
bin10101011110111100
311110201010
4111132330
510303441
61515220
7514356
oct253674
9143633
1087996
1160127
1242b10
133108c
14240d6
151b116
hex157bc

87996 has 12 divisors (see below), whose sum is σ = 205352. Its totient is φ = 29328.

The previous prime is 87991. The next prime is 88001. The reversal of 87996 is 69978.

It is an interprime number because it is at equal distance from previous prime (87991) and next prime (88001).

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87991) by changing a digit.

87996 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 3655 + ... + 3678.

287996 is an apocalyptic number.

It is an amenable number.

87996 is an abundant number, since it is smaller than the sum of its proper divisors (117356).

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 (102676).

87996 is a wasteful number, since it uses less digits than its factorization.

87996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7340 (or 7338 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 87996 is about 296.6411974086. The cubic root of 87996 is about 44.4789278678.

The spelling of 87996 in words is "eighty-seven thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 12 7333 14666 21999 29332 43998 87996