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28850146417 = 191151047887
BaseRepresentation
bin11010110111100110…
…100100110001110001
32202110121122021210101
4122313212210301301
5433041114141132
621130434432401
72040635125021
oct326746446161
982417567711
1028850146417
1111265179014
125711a32701
13294a0aa871
14157984da81
15b3cbe67e7
hex6b79a4c71

28850146417 has 4 divisors (see below), whose sum is σ = 29001194496. Its totient is φ = 28699098340.

The previous prime is 28850146363. The next prime is 28850146453. The reversal of 28850146417 is 71464105882.

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 28850146417 - 223 = 28841757809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28850149417) 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, 75523753 + ... + 75524134.

It is an arithmetic number, because the mean of its divisors is an integer number (7250298624).

Almost surely, 228850146417 is an apocalyptic number.

It is an amenable number.

28850146417 is a deficient number, since it is larger than the sum of its proper divisors (151048079).

28850146417 is a wasteful number, since it uses less digits than its factorization.

28850146417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151048078.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 28850146417 in words is "twenty-eight billion, eight hundred fifty million, one hundred forty-six thousand, four hundred seventeen".

Divisors: 1 191 151047887 28850146417