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285094491 = 3118639227
BaseRepresentation
bin10000111111100…
…011001001011011
3201212110022010020
4100333203021123
51040441010431
644142321523
710031156163
oct2077431133
9655408106
10285094491
11136a23790
127b5892a3
13470ac486
1429c135a3
151a067696
hex10fe325b

285094491 has 8 divisors (see below), whose sum is σ = 414682944. Its totient is φ = 172784520.

The previous prime is 285094477. The next prime is 285094517. The reversal of 285094491 is 194490582.

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

It is not a de Polignac number, because 285094491 - 213 = 285086299 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (285094291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4319581 + ... + 4319646.

It is an arithmetic number, because the mean of its divisors is an integer number (51835368).

Almost surely, 2285094491 is an apocalyptic number.

285094491 is a deficient number, since it is larger than the sum of its proper divisors (129588453).

285094491 is a wasteful number, since it uses less digits than its factorization.

285094491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8639241.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 285094491 is about 16884.7413660974. The cubic root of 285094491 is about 658.1571572090.

The spelling of 285094491 in words is "two hundred eighty-five million, ninety-four thousand, four hundred ninety-one".

Divisors: 1 3 11 33 8639227 25917681 95031497 285094491