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89952133 = 731232221
BaseRepresentation
bin1010101110010…
…00111110000101
320021021001010111
411113020332011
5141011432013
612531553021
72141403055
oct527107605
9207231114
1089952133
1146859407
122615b771
131583621b
14bd37565
157d6c73d
hex55c8f85

89952133 has 4 divisors (see below), whose sum is σ = 91184428. Its totient is φ = 88719840.

The previous prime is 89952119. The next prime is 89952157. The reversal of 89952133 is 33125998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33125998 = 216562999.

It can be written as a sum of positive squares in 2 ways, for example, as 78269409 + 11682724 = 8847^2 + 3418^2 .

It is a cyclic number.

It is not a de Polignac number, because 89952133 - 225 = 56397701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89952433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616038 + ... + 616183.

It is an arithmetic number, because the mean of its divisors is an integer number (22796107).

Almost surely, 289952133 is an apocalyptic number.

It is an amenable number.

89952133 is a deficient number, since it is larger than the sum of its proper divisors (1232295).

89952133 is a wasteful number, since it uses less digits than its factorization.

89952133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232294.

The product of its digits is 58320, while the sum is 40.

The square root of 89952133 is about 9484.3098325603. The cubic root of 89952133 is about 448.0610118994.

The spelling of 89952133 in words is "eighty-nine million, nine hundred fifty-two thousand, one hundred thirty-three".

Divisors: 1 73 1232221 89952133