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302018029 = 893393461
BaseRepresentation
bin10010000000000…
…110110111101101
3210001022002211221
4102000012313231
51104304034104
645545143341
710325053015
oct2200066755
9701262757
10302018029
11145532685
128518ab51
134a7564c1
142c17ac45
151b7abc54
hex12006ded

302018029 has 4 divisors (see below), whose sum is σ = 305411580. Its totient is φ = 298624480.

The previous prime is 302017999. The next prime is 302018033. The reversal of 302018029 is 920810203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 920810203 = 7271266589.

It can be written as a sum of positive squares in 2 ways, for example, as 103489929 + 198528100 = 10173^2 + 14090^2 .

It is a cyclic number.

It is not a de Polignac number, because 302018029 - 29 = 302017517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302017994 and 302018012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302018329) 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, 1696642 + ... + 1696819.

It is an arithmetic number, because the mean of its divisors is an integer number (76352895).

Almost surely, 2302018029 is an apocalyptic number.

It is an amenable number.

302018029 is a deficient number, since it is larger than the sum of its proper divisors (3393551).

302018029 is an equidigital number, since it uses as much as digits as its factorization.

302018029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393550.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 302018029 is about 17378.6659154263. The cubic root of 302018029 is about 670.9306359002.

The spelling of 302018029 in words is "three hundred two million, eighteen thousand, twenty-nine".

Divisors: 1 89 3393461 302018029