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302234129 = 1732117449
BaseRepresentation
bin10010000000111…
…011101000010001
3210001201002021122
4102000323220101
51104332443004
645553532025
710326643031
oct2200735021
9701632248
10302234129
1114566aa7a
1285274015
134a800982
142c1d58c1
151b800cbe
hex1203ba11

302234129 has 4 divisors (see below), whose sum is σ = 302268900. Its totient is φ = 302199360.

The previous prime is 302234087. The next prime is 302234183. The reversal of 302234129 is 921432203.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 220819600 + 81414529 = 14860^2 + 9023^2 .

It is a cyclic number.

It is not a de Polignac number, because 302234129 - 28 = 302233873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 302234098 and 302234107.

It is not an unprimeable number, because it can be changed into a prime (302234029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8597 + ... + 26045.

It is an arithmetic number, because the mean of its divisors is an integer number (75567225).

Almost surely, 2302234129 is an apocalyptic number.

It is an amenable number.

302234129 is a deficient number, since it is larger than the sum of its proper divisors (34771).

302234129 is a wasteful number, since it uses less digits than its factorization.

302234129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34770.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 302234129 is about 17384.8821968974. The cubic root of 302234129 is about 671.0906192230.

The spelling of 302234129 in words is "three hundred two million, two hundred thirty-four thousand, one hundred twenty-nine".

Divisors: 1 17321 17449 302234129