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90160199 = 863104473
BaseRepresentation
bin1010101111110…
…11110001000111
320021122121112122
411113323301013
5141040111244
612540240155
72143230503
oct527736107
9207577478
1090160199
1146990768
122624005b
13158a9b3c
14bd8d303
157dae1ee
hex55fbc47

90160199 has 4 divisors (see below), whose sum is σ = 90265536. Its totient is φ = 90054864.

The previous prime is 90160193. The next prime is 90160211. The reversal of 90160199 is 99106109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99106109 = 195216111.

It is a cyclic number.

It is not a de Polignac number, because 90160199 - 212 = 90156103 is a prime.

It is a super-2 number, since 2×901601992 = 16257722967439202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90160193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51374 + ... + 53099.

It is an arithmetic number, because the mean of its divisors is an integer number (22566384).

Almost surely, 290160199 is an apocalyptic number.

90160199 is a deficient number, since it is larger than the sum of its proper divisors (105337).

90160199 is a wasteful number, since it uses less digits than its factorization.

90160199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105336.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 90160199 is about 9495.2724552800. The cubic root of 90160199 is about 448.4062120700.

The spelling of 90160199 in words is "ninety million, one hundred sixty thousand, one hundred ninety-nine".

Divisors: 1 863 104473 90160199