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302343130 = 25172233449
BaseRepresentation
bin10010000001010…
…110001111011010
3210001220121210201
4102001112033122
51104344440010
650000132414
710330605565
oct2201261732
9701817721
10302343130
11145734961
128530710a
134a83b47b
142c2234dc
151b82323a
hex120563da

302343130 has 48 divisors (see below), whose sum is σ = 581887800. Its totient is φ = 113082368.

The previous prime is 302343127. The next prime is 302343131. The reversal of 302343130 is 31343203.

302343130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 73153809 + 229189321 = 8553^2 + 15139^2 .

It is a super-2 number, since 2×3023431302 = 182822736516393800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 302343098 and 302343107.

It is not an unprimeable number, because it can be changed into a prime (302343131) 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 23 ways as a sum of consecutive naturals, for example, 673146 + ... + 673594.

Almost surely, 2302343130 is an apocalyptic number.

302343130 is a deficient number, since it is larger than the sum of its proper divisors (279544670).

302343130 is a wasteful number, since it uses less digits than its factorization.

302343130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 302343130 is about 17388.0168506935. The cubic root of 302343130 is about 671.1712859970.

Adding to 302343130 its reverse (31343203), we get a palindrome (333686333).

The spelling of 302343130 in words is "three hundred two million, three hundred forty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 233 289 449 466 578 898 1165 1445 2245 2330 2890 3961 4490 7633 7922 15266 19805 38165 39610 67337 76330 104617 129761 134674 209234 259522 336685 523085 648805 673370 1046170 1297610 1778489 3556978 8892445 17784890 30234313 60468626 151171565 302343130