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30411282193 = 31981009103
BaseRepresentation
bin11100010100101001…
…110101011100010001
32220111102012012110221
4130110221311130101
5444240242012233
621545403153041
72124422430205
oct342451653421
986442165427
1030411282193
1111996415476
125a88815781
132b38656a46
141686d08b05
15bcecba42d
hex714a75711

30411282193 has 4 divisors (see below), whose sum is σ = 31392291328. Its totient is φ = 29430273060.

The previous prime is 30411282191. The next prime is 30411282229. The reversal of 30411282193 is 39128211403.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39128211403 = 108313612613.

It is a cyclic number.

It is not a de Polignac number, because 30411282193 - 21 = 30411282191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30411282191) 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, 490504521 + ... + 490504582.

It is an arithmetic number, because the mean of its divisors is an integer number (7848072832).

Almost surely, 230411282193 is an apocalyptic number.

It is an amenable number.

30411282193 is a deficient number, since it is larger than the sum of its proper divisors (981009135).

30411282193 is an equidigital number, since it uses as much as digits as its factorization.

30411282193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981009134.

The product of its (nonzero) digits is 10368, while the sum is 34.

Adding to 30411282193 its reverse (39128211403), we get a palindrome (69539493596).

The spelling of 30411282193 in words is "thirty billion, four hundred eleven million, two hundred eighty-two thousand, one hundred ninety-three".

Divisors: 1 31 981009103 30411282193