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90107498 = 2133465673
BaseRepresentation
bin1010101111011…
…10111001101010
320021112221020202
411113232321222
5141031414443
612535152202
72142621035
oct527567152
9207487222
1090107498
1146955108
1226215662
131588bb60
14bd7801c
157d9d7b8
hex55eee6a

90107498 has 8 divisors (see below), whose sum is σ = 145558308. Its totient is φ = 41588064.

The previous prime is 90107467. The next prime is 90107513. The reversal of 90107498 is 89470109.

It can be written as a sum of positive squares in 2 ways, for example, as 90003169 + 104329 = 9487^2 + 323^2 .

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

It is a super-2 number, since 2×901074982 = 16238722391640008, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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 3 ways as a sum of consecutive naturals, for example, 1732811 + ... + 1732862.

Almost surely, 290107498 is an apocalyptic number.

90107498 is a deficient number, since it is larger than the sum of its proper divisors (55450810).

90107498 is a wasteful number, since it uses less digits than its factorization.

90107498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465688.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 90107498 is about 9492.4969317878. The cubic root of 90107498 is about 448.3188266459.

The spelling of 90107498 in words is "ninety million, one hundred seven thousand, four hundred ninety-eight".

Divisors: 1 2 13 26 3465673 6931346 45053749 90107498