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30420432113 = 61349625501
BaseRepresentation
bin11100010101001100…
…101111010011110001
32220112001102001210212
4130111030233103301
5444300112311423
621550331233505
72124563256311
oct342514572361
986461361725
1030420432113
11119a05a4995
125a8b8a8895
132b3a50b6b6
14168820b441
15bd09c6578
hex71532f4f1

30420432113 has 4 divisors (see below), whose sum is σ = 30470058228. Its totient is φ = 30370806000.

The previous prime is 30420432083. The next prime is 30420432131. The reversal of 30420432113 is 31123402403.

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 1716279184 + 28704152929 = 41428^2 + 169423^2 .

It is a cyclic number.

It is not a de Polignac number, because 30420432113 - 216 = 30420366577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30420432143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24812138 + ... + 24813363.

It is an arithmetic number, because the mean of its divisors is an integer number (7617514557).

Almost surely, 230420432113 is an apocalyptic number.

It is an amenable number.

30420432113 is a deficient number, since it is larger than the sum of its proper divisors (49626115).

30420432113 is an equidigital number, since it uses as much as digits as its factorization.

30420432113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49626114.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30420432113 its reverse (31123402403), we get a palindrome (61543834516).

The spelling of 30420432113 in words is "thirty billion, four hundred twenty million, four hundred thirty-two thousand, one hundred thirteen".

Divisors: 1 613 49625501 30420432113