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30142300633 = 291039389677
BaseRepresentation
bin11100000100100111…
…110000000111011001
32212210200001112010221
4130010213300013121
5443212412110013
621502554040041
72114645220334
oct340447600731
985720045127
1030142300633
11118685a7665
125a12719021
132ac49c9663
14165d2cb61b
15bb638708d
hex7049f01d9

30142300633 has 4 divisors (see below), whose sum is σ = 31181690340. Its totient is φ = 29102910928.

The previous prime is 30142300579. The next prime is 30142300651. The reversal of 30142300633 is 33600324103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33600324103 = 89633748781.

It can be written as a sum of positive squares in 2 ways, for example, as 25254612889 + 4887687744 = 158917^2 + 69912^2 .

It is a cyclic number.

It is not a de Polignac number, because 30142300633 - 29 = 30142300121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30142300598 and 30142300607.

It is not an unprimeable number, because it can be changed into a prime (30142300673) 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, 519694810 + ... + 519694867.

It is an arithmetic number, because the mean of its divisors is an integer number (7795422585).

Almost surely, 230142300633 is an apocalyptic number.

It is an amenable number.

30142300633 is a deficient number, since it is larger than the sum of its proper divisors (1039389707).

30142300633 is a wasteful number, since it uses less digits than its factorization.

30142300633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039389706.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 30142300633 its reverse (33600324103), we get a palindrome (63742624736).

The spelling of 30142300633 in words is "thirty billion, one hundred forty-two million, three hundred thousand, six hundred thirty-three".

Divisors: 1 29 1039389677 30142300633