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30434433013 = 38978237617
BaseRepresentation
bin11100010110000010…
…001001011111110101
32220120000202101102201
4130112002021133311
5444312203324023
621551551304501
72125123261255
oct342602113765
986500671381
1030434433013
11119a8497a86
125a9451b131
132b403a135a
14168a013965
15bd1d3ebad
hex7160897f5

30434433013 has 4 divisors (see below), whose sum is σ = 30512671020. Its totient is φ = 30356195008.

The previous prime is 30434432999. The next prime is 30434433031. The reversal of 30434433013 is 31033443403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17113349124 + 13321083889 = 130818^2 + 115417^2 .

It is a cyclic number.

It is not a de Polignac number, because 30434433013 - 213 = 30434424821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30434433053) 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, 39118420 + ... + 39119197.

It is an arithmetic number, because the mean of its divisors is an integer number (7628167755).

Almost surely, 230434433013 is an apocalyptic number.

It is an amenable number.

30434433013 is a deficient number, since it is larger than the sum of its proper divisors (78238007).

30434433013 is an equidigital number, since it uses as much as digits as its factorization.

30434433013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78238006.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 30434433013 its reverse (31033443403), we get a palindrome (61467876416).

The spelling of 30434433013 in words is "thirty billion, four hundred thirty-four million, four hundred thirty-three thousand, thirteen".

Divisors: 1 389 78237617 30434433013