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30555031201 = 80937768889
BaseRepresentation
bin11100011101001110…
…001100011010100001
32220212102200102001021
4130131032030122201
51000034041444301
622011540205441
72131116323422
oct343516143241
986772612037
1030555031201
1111a5a578202
125b08999881
132b5c377626
14169c047649
15bdc7128a1
hex71d38c6a1

30555031201 has 4 divisors (see below), whose sum is σ = 30592800900. Its totient is φ = 30517261504.

The previous prime is 30555031189. The next prime is 30555031207. The reversal of 30555031201 is 10213055503.

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 27217080576 + 3337950625 = 164976^2 + 57775^2 .

It is a cyclic number.

It is not a de Polignac number, because 30555031201 - 233 = 21965096609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30555031207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18883636 + ... + 18885253.

It is an arithmetic number, because the mean of its divisors is an integer number (7648200225).

Almost surely, 230555031201 is an apocalyptic number.

It is an amenable number.

30555031201 is a deficient number, since it is larger than the sum of its proper divisors (37769699).

30555031201 is an equidigital number, since it uses as much as digits as its factorization.

30555031201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37769698.

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 30555031201 its reverse (10213055503), we get a palindrome (40768086704).

The spelling of 30555031201 in words is "thirty billion, five hundred fifty-five million, thirty-one thousand, two hundred one".

Divisors: 1 809 37768889 30555031201