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30142130302 = 2108803138517
BaseRepresentation
bin11100000100100111…
…000110100001111110
32212210122201212111101
4130010213012201332
5443212341132202
621502550243314
72114643610624
oct340447064176
985718655441
1030142130302
11118684a0699
125a1265653a
132ac4969c7b
14165d285514
15bb6351887
hex7049c687e

30142130302 has 8 divisors (see below), whose sum is σ = 45213937416. Its totient is φ = 15070817832.

The previous prime is 30142130297. The next prime is 30142130303. The reversal of 30142130302 is 20303124103.

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

It is a super-2 number, since 2×301421303022 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30142130302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142130303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148348 + ... + 286864.

It is an arithmetic number, because the mean of its divisors is an integer number (5651742177).

Almost surely, 230142130302 is an apocalyptic number.

30142130302 is a deficient number, since it is larger than the sum of its proper divisors (15071807114).

30142130302 is a wasteful number, since it uses less digits than its factorization.

30142130302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247322.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30142130302 its reverse (20303124103), we get a palindrome (50445254405).

The spelling of 30142130302 in words is "thirty billion, one hundred forty-two million, one hundred thirty thousand, three hundred two".

Divisors: 1 2 108803 138517 217606 277034 15071065151 30142130302