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284934485 = 51131167117
BaseRepresentation
bin10000111110111…
…100000101010101
3201212011011122002
4100332330011111
51040420400420
644135045045
710026621533
oct2076740525
9655134562
10284934485
11136924550
127b510785
13470546b4
1429bb1153
151a035075
hex10fbc155

284934485 has 16 divisors (see below), whose sum is σ = 385039872. Its totient is φ = 200539200.

The previous prime is 284934457. The next prime is 284934487. The reversal of 284934485 is 584439482.

It is not a de Polignac number, because 284934485 - 210 = 284933461 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 (284934487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81854 + ... + 85263.

It is an arithmetic number, because the mean of its divisors is an integer number (24064992).

Almost surely, 2284934485 is an apocalyptic number.

It is an amenable number.

284934485 is a deficient number, since it is larger than the sum of its proper divisors (100105387).

284934485 is a wasteful number, since it uses less digits than its factorization.

284934485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167164.

The product of its digits is 1105920, while the sum is 47.

The square root of 284934485 is about 16880.0025177723. The cubic root of 284934485 is about 658.0340064587.

The spelling of 284934485 in words is "two hundred eighty-four million, nine hundred thirty-four thousand, four hundred eighty-five".

Divisors: 1 5 11 31 55 155 341 1705 167117 835585 1838287 5180627 9191435 25903135 56986897 284934485