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302310013 = 928132573
BaseRepresentation
bin10010000001001…
…110001001111101
3210001211221101011
4102001032021331
51104342410023
645555315221
710330410205
oct2201161175
9701757334
10302310013
11145711a95
12852abb11
134a829385
142c215405
151b81850d
hex1204e27d

302310013 has 4 divisors (see below), whose sum is σ = 302351868. Its totient is φ = 302268160.

The previous prime is 302309983. The next prime is 302310023. The reversal of 302310013 is 310013203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310013203 = 1312366513.

It can be written as a sum of positive squares in 2 ways, for example, as 114126489 + 188183524 = 10683^2 + 13718^2 .

It is a cyclic number.

It is not a de Polignac number, because 302310013 - 213 = 302301821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302309975 and 302310002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302310023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7006 + ... + 25567.

It is an arithmetic number, because the mean of its divisors is an integer number (75587967).

Almost surely, 2302310013 is an apocalyptic number.

It is an amenable number.

302310013 is a deficient number, since it is larger than the sum of its proper divisors (41855).

302310013 is an equidigital number, since it uses as much as digits as its factorization.

302310013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41854.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 302310013 is about 17387.0645308517. The cubic root of 302310013 is about 671.1467796345.

Adding to 302310013 its reverse (310013203), we get a palindrome (612323216).

The spelling of 302310013 in words is "three hundred two million, three hundred ten thousand, thirteen".

Divisors: 1 9281 32573 302310013