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9288138 = 239715959
BaseRepresentation
bin100011011011…
…100111001010
3122110212221010
4203123213022
54334210023
6531024350
7141643056
oct43334712
918425833
109288138
115274352
12313b0b6
131c02852
14133ac66
15c37093
hex8db9ca

9288138 has 16 divisors (see below), whose sum is σ = 18768960. Its totient is φ = 3063936.

The previous prime is 9288121. The next prime is 9288151. The reversal of 9288138 is 8318829.

It is a junction number, because it is equal to n+sod(n) for n = 9288096 and 9288105.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7398 + ... + 8561.

It is an arithmetic number, because the mean of its divisors is an integer number (1173060).

Almost surely, 29288138 is an apocalyptic number.

9288138 is an abundant number, since it is smaller than the sum of its proper divisors (9480822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9288138 is a wasteful number, since it uses less digits than its factorization.

9288138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16061.

The product of its digits is 27648, while the sum is 39.

The square root of 9288138 is about 3047.6446643269. The cubic root of 9288138 is about 210.2049246795.

The spelling of 9288138 in words is "nine million, two hundred eighty-eight thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 97 194 291 582 15959 31918 47877 95754 1548023 3096046 4644069 9288138