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30501042443 = 257118681099
BaseRepresentation
bin11100011010000000…
…001111100100001011
32220201200002111101122
4130122000033210023
5444431231324233
622002331105455
72126562403664
oct343200174413
986650074348
1030501042443
1111a320526a3
125ab28a228b
132b51123811
141694bd236b
15bd7aead98
hex71a00f90b

30501042443 has 4 divisors (see below), whose sum is σ = 30619723800. Its totient is φ = 30382361088.

The previous prime is 30501042421. The next prime is 30501042469. The reversal of 30501042443 is 34424010503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34424010503 = 100207343529.

It is a cyclic number.

It is not a de Polignac number, because 30501042443 - 26 = 30501042379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30501042493) 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, 59340293 + ... + 59340806.

It is an arithmetic number, because the mean of its divisors is an integer number (7654930950).

Almost surely, 230501042443 is an apocalyptic number.

30501042443 is a deficient number, since it is larger than the sum of its proper divisors (118681357).

30501042443 is a wasteful number, since it uses less digits than its factorization.

30501042443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118681356.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 30501042443 its reverse (34424010503), we get a palindrome (64925052946).

The spelling of 30501042443 in words is "thirty billion, five hundred one million, forty-two thousand, four hundred forty-three".

Divisors: 1 257 118681099 30501042443