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90104794 = 21317203857
BaseRepresentation
bin1010101111011…
…10001111011010
320021112210112121
411113232033122
5141031323134
612535131454
72142610123
oct527561732
9207483477
1090104794
114695307a
1226213b8a
131588a860
14bd7704a
157d9cab4
hex55ee3da

90104794 has 16 divisors (see below), whose sum is σ = 154116648. Its totient is φ = 39140352.

The previous prime is 90104779. The next prime is 90104803. The reversal of 90104794 is 49740109.

It can be written as a sum of positive squares in 4 ways, for example, as 50225569 + 39879225 = 7087^2 + 6315^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 101487 + ... + 102370.

Almost surely, 290104794 is an apocalyptic number.

90104794 is a deficient number, since it is larger than the sum of its proper divisors (64011854).

90104794 is a wasteful number, since it uses less digits than its factorization.

90104794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203889.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 90104794 is about 9492.3545024404. The cubic root of 90104794 is about 448.3143421274.

The spelling of 90104794 in words is "ninety million, one hundred four thousand, seven hundred ninety-four".

Divisors: 1 2 13 17 26 34 221 442 203857 407714 2650141 3465569 5300282 6931138 45052397 90104794