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90953031 = 3132332129
BaseRepresentation
bin1010110101111…
…01010101000111
320100010220002210
411122331111013
5141240444111
613005234503
72153042121
oct532752507
9210126083
1090953031
11473823a4
1226562a33
1315ac6980
14c118211
157eb90a6
hex56bd547

90953031 has 8 divisors (see below), whose sum is σ = 130599280. Its totient is φ = 55971072.

The previous prime is 90952997. The next prime is 90953069. The reversal of 90953031 is 13035909.

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

It is not a de Polignac number, because 90953031 - 210 = 90952007 is a prime.

It is a super-2 number, since 2×909530312 = 16544907696173922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90953031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90953081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166026 + ... + 1166103.

It is an arithmetic number, because the mean of its divisors is an integer number (16324910).

Almost surely, 290953031 is an apocalyptic number.

90953031 is a deficient number, since it is larger than the sum of its proper divisors (39646249).

90953031 is a wasteful number, since it uses less digits than its factorization.

90953031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332145.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 90953031 is about 9536.9298518968. The cubic root of 90953031 is about 449.7167451980.

The spelling of 90953031 in words is "ninety million, nine hundred fifty-three thousand, thirty-one".

Divisors: 1 3 13 39 2332129 6996387 30317677 90953031