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90371361 = 330123787
BaseRepresentation
bin1010110001011…
…11010100100001
320022001100012110
411120233110201
5141113340421
612544545533
72145100233
oct530572441
9208040173
1090371361
1147015383
12263222a9
1315951ca2
14c006253
157e01a76
hex562f521

90371361 has 4 divisors (see below), whose sum is σ = 120495152. Its totient is φ = 60247572.

The previous prime is 90371341. The next prime is 90371377. The reversal of 90371361 is 16317309.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 90371361 - 25 = 90371329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90371321) 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 3 ways as a sum of consecutive naturals, for example, 15061891 + ... + 15061896.

It is an arithmetic number, because the mean of its divisors is an integer number (30123788).

Almost surely, 290371361 is an apocalyptic number.

It is an amenable number.

90371361 is a deficient number, since it is larger than the sum of its proper divisors (30123791).

90371361 is a wasteful number, since it uses less digits than its factorization.

90371361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30123790.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 90371361 is about 9506.3852751716. The cubic root of 90371361 is about 448.7560062097.

The spelling of 90371361 in words is "ninety million, three hundred seventy-one thousand, three hundred sixty-one".

Divisors: 1 3 30123787 90371361