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304102142 = 2891708439
BaseRepresentation
bin10010001000000…
…011101011111110
3210012012222201022
4102020003223332
51110322232032
650101544142
710351553111
oct2210035376
9705188638
10304102142
11146726493
1285a15052
134b005cc6
142c560578
151ba6e512
hex12203afe

304102142 has 8 divisors (see below), whose sum is σ = 461278800. Its totient is φ = 150342544.

The previous prime is 304102129. The next prime is 304102147. The reversal of 304102142 is 241201403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3041021422 = 184956225537976328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 304102142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304102147) 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, 854042 + ... + 854397.

It is an arithmetic number, because the mean of its divisors is an integer number (57659850).

Almost surely, 2304102142 is an apocalyptic number.

304102142 is a deficient number, since it is larger than the sum of its proper divisors (157176658).

304102142 is a wasteful number, since it uses less digits than its factorization.

304102142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708530.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 304102142 is about 17438.5246508987. The cubic root of 304102142 is about 672.4703797017.

Adding to 304102142 its reverse (241201403), we get a palindrome (545303545).

The spelling of 304102142 in words is "three hundred four million, one hundred two thousand, one hundred forty-two".

Divisors: 1 2 89 178 1708439 3416878 152051071 304102142