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90052637 = 713593533
BaseRepresentation
bin1010101111000…
…01100000011101
320021110010222212
411113201200131
5141023141022
612534050205
72142302063
oct527414035
9207403885
1090052637
1146917974
12261a9965
131586cbac
14bd62033
157d8c3e2
hex55e181d

90052637 has 8 divisors (see below), whose sum is σ = 91601280. Its totient is φ = 88511920.

The previous prime is 90052619. The next prime is 90052643. The reversal of 90052637 is 73625009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90052637 - 210 = 90051613 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 (90052607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23723 + ... + 27255.

It is an arithmetic number, because the mean of its divisors is an integer number (11450160).

Almost surely, 290052637 is an apocalyptic number.

It is an amenable number.

90052637 is a deficient number, since it is larger than the sum of its proper divisors (1548643).

90052637 is a wasteful number, since it uses less digits than its factorization.

90052637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 90052637 is about 9489.6067884818. The cubic root of 90052637 is about 448.2278234445.

The spelling of 90052637 in words is "ninety million, fifty-two thousand, six hundred thirty-seven".

Divisors: 1 71 359 3533 25489 250843 1268347 90052637