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90608 = 247809
BaseRepresentation
bin10110000111110000
311121021212
4112013300
510344413
61535252
7525110
oct260760
9147255
1090608
1162091
1244528
133231b
1425040
151bca8
hex161f0

90608 has 20 divisors (see below), whose sum is σ = 200880. Its totient is φ = 38784.

The previous prime is 90599. The next prime is 90617. The reversal of 90608 is 80609.

It is an interprime number because it is at equal distance from previous prime (90599) and next prime (90617).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293 + ... + 516.

It is an arithmetic number, because the mean of its divisors is an integer number (10044).

290608 is an apocalyptic number.

It is an amenable number.

90608 is an abundant number, since it is smaller than the sum of its proper divisors (110272).

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 (100440).

90608 is a wasteful number, since it uses less digits than its factorization.

90608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 90608 is about 301.0116276824. The cubic root of 90608 is about 44.9147356657.

Subtracting from 90608 its reverse (80609), we obtain a palindrome (9999).

The spelling of 90608 in words is "ninety thousand, six hundred eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 809 1618 3236 5663 6472 11326 12944 22652 45304 90608