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282013285 = 556402657
BaseRepresentation
bin10000110011110…
…010111001100101
3201122122202111111
4100303302321211
51034143411120
643552305021
76663034111
oct2063627145
9648582444
10282013285
11135209834
127a542171
1346570b88
1429650741
1519b5975a
hex10cf2e65

282013285 has 4 divisors (see below), whose sum is σ = 338415948. Its totient is φ = 225610624.

The previous prime is 282013283. The next prime is 282013351. The reversal of 282013285 is 582310282.

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 123076836 + 158936449 = 11094^2 + 12607^2 .

It is a cyclic number.

It is not a de Polignac number, because 282013285 - 21 = 282013283 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 (282013283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28201324 + ... + 28201333.

It is an arithmetic number, because the mean of its divisors is an integer number (84603987).

Almost surely, 2282013285 is an apocalyptic number.

It is an amenable number.

282013285 is a deficient number, since it is larger than the sum of its proper divisors (56402663).

282013285 is an equidigital number, since it uses as much as digits as its factorization.

282013285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56402662.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 282013285 is about 16793.2511742069. The cubic root of 282013285 is about 655.7775161710. Note that the first 3 decimals are identical.

The spelling of 282013285 in words is "two hundred eighty-two million, thirteen thousand, two hundred eighty-five".

Divisors: 1 5 56402657 282013285