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9090893 = 71298699
BaseRepresentation
bin100010101011…
…011101001101
3122002212100202
4202223131031
54311402033
6522503245
7140162030
oct42533515
918085322
109090893
11514a139
123064b25
131b63b36
1412c9017
15be88e8
hex8ab74d

9090893 has 4 divisors (see below), whose sum is σ = 10389600. Its totient is φ = 7792188.

The previous prime is 9090871. The next prime is 9090901. The reversal of 9090893 is 3980909.

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 a cyclic number.

It is not a de Polignac number, because 9090893 - 220 = 8042317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090853) 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, 649343 + ... + 649356.

It is an arithmetic number, because the mean of its divisors is an integer number (2597400).

Almost surely, 29090893 is an apocalyptic number.

It is an amenable number.

9090893 is a deficient number, since it is larger than the sum of its proper divisors (1298707).

9090893 is a wasteful number, since it uses less digits than its factorization.

9090893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298706.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 9090893 is about 3015.1107774011. The cubic root of 9090893 is about 208.7062791055.

The spelling of 9090893 in words is "nine million, ninety thousand, eight hundred ninety-three".

Divisors: 1 7 1298699 9090893