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2812085 = 5562417
BaseRepresentation
bin1010101110100010110101
312021212110022
422232202311
51204441320
6140134525
732621333
oct12564265
95255408
102812085
111650841
12b37445
13775c73
14532b53
153a8325
hex2ae8b5

2812085 has 4 divisors (see below), whose sum is σ = 3374508. Its totient is φ = 2249664.

The previous prime is 2812063. The next prime is 2812099. The reversal of 2812085 is 5802182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1643524 + 1168561 = 1282^2 + 1081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2812085 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281204 + ... + 281213.

It is an arithmetic number, because the mean of its divisors is an integer number (843627).

22812085 is an apocalyptic number.

It is an amenable number.

2812085 is a deficient number, since it is larger than the sum of its proper divisors (562423).

2812085 is an equidigital number, since it uses as much as digits as its factorization.

2812085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562422.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2812085 is about 1676.9272494655. The cubic root of 2812085 is about 141.1484612359.

The spelling of 2812085 in words is "two million, eight hundred twelve thousand, eighty-five".

Divisors: 1 5 562417 2812085