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30424445431 = 50775992603
BaseRepresentation
bin11100010101011100…
…000011000111110111
32220112022221222001021
4130111130003013313
5444302124223211
621550553242011
72124642343042
oct342534030767
986468858037
1030424445431
11119a2896186
125a91103307
132b3b2b5343
141688973c59
15bd101a771
hex7157031f7

30424445431 has 4 divisors (see below), whose sum is σ = 30430443112. Its totient is φ = 30418447752.

The previous prime is 30424445407. The next prime is 30424445497. The reversal of 30424445431 is 13454442403.

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

It is a cyclic number.

It is not a de Polignac number, because 30424445431 - 217 = 30424314359 is a prime.

It is a super-2 number, since 2×304244454312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30424449431) 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, 2991225 + ... + 3001378.

It is an arithmetic number, because the mean of its divisors is an integer number (7607610778).

Almost surely, 230424445431 is an apocalyptic number.

30424445431 is a deficient number, since it is larger than the sum of its proper divisors (5997681).

30424445431 is an equidigital number, since it uses as much as digits as its factorization.

30424445431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997680.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 30424445431 its reverse (13454442403), we get a palindrome (43878887834).

The spelling of 30424445431 in words is "thirty billion, four hundred twenty-four million, four hundred forty-five thousand, four hundred thirty-one".

Divisors: 1 5077 5992603 30424445431