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19393310017 = 45074302931
BaseRepresentation
bin10010000011111011…
…100110110101000001
31212001112221020001101
4102003323212311001
5304204141410032
612524213534401
71254404262304
oct220373466501
955045836041
1019393310017
118252021944
123912944401
131aa0aa8c93
14d1d8bab3b
1578787ade7
hex483ee6d41

19393310017 has 4 divisors (see below), whose sum is σ = 19397617456. Its totient is φ = 19389002580.

The previous prime is 19393309939. The next prime is 19393310033. The reversal of 19393310017 is 71001339391.

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.

It is a cyclic number.

It is not a de Polignac number, because 19393310017 - 27 = 19393309889 is a prime.

It is a super-2 number, since 2×193933100172 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19393310047) 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, 2146959 + ... + 2155972.

It is an arithmetic number, because the mean of its divisors is an integer number (4849404364).

Almost surely, 219393310017 is an apocalyptic number.

It is an amenable number.

19393310017 is a deficient number, since it is larger than the sum of its proper divisors (4307439).

19393310017 is an equidigital number, since it uses as much as digits as its factorization.

19393310017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307438.

The product of its (nonzero) digits is 15309, while the sum is 37.

The spelling of 19393310017 in words is "nineteen billion, three hundred ninety-three million, three hundred ten thousand, seventeen".

Divisors: 1 4507 4302931 19393310017