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12842285 = 52568457
BaseRepresentation
bin110000111111…
…010100101101
3220011110022012
4300333110231
511241423120
61135131005
7214105031
oct60772455
926143265
1012842285
117281665
124373a65
1328784b1
1419c41c1
1511da1c5
hexc3f52d

12842285 has 4 divisors (see below), whose sum is σ = 15410748. Its totient is φ = 10273824.

The previous prime is 12842279. The next prime is 12842287. The reversal of 12842285 is 58224821.

12842285 = 20682 + 20692 + 20702.

12842285 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8185321 + 4656964 = 2861^2 + 2158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12842285 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 (12842287) 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, 1284224 + ... + 1284233.

It is an arithmetic number, because the mean of its divisors is an integer number (3852687).

Almost surely, 212842285 is an apocalyptic number.

It is an amenable number.

12842285 is a deficient number, since it is larger than the sum of its proper divisors (2568463).

12842285 is an equidigital number, since it uses as much as digits as its factorization.

12842285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568462.

The product of its digits is 10240, while the sum is 32.

The square root of 12842285 is about 3583.6133999080. The cubic root of 12842285 is about 234.1787236158.

The spelling of 12842285 in words is "twelve million, eight hundred forty-two thousand, two hundred eighty-five".

Divisors: 1 5 2568457 12842285