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28466719049 = 191543970997
BaseRepresentation
bin11010100000101111…
…111010100101001001
32201110220011011022202
4122200233322211021
5431244440002144
621024420325545
72025301055666
oct324057724511
981426134282
1028466719049
11110887a239a
1256255438b5
1328b881c672
141540960a6d
15b1920864e
hex6a0bfa949

28466719049 has 8 divisors (see below), whose sum is σ = 29984418240. Its totient is φ = 26950964976.

The previous prime is 28466719019. The next prime is 28466719063. The reversal of 28466719049 is 94091766482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28466719049 - 232 = 24171751753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28466718985 and 28466719003.

It is not an unprimeable number, because it can be changed into a prime (28466719019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456182 + ... + 514815.

It is an arithmetic number, because the mean of its divisors is an integer number (3748052280).

Almost surely, 228466719049 is an apocalyptic number.

It is an amenable number.

28466719049 is a deficient number, since it is larger than the sum of its proper divisors (1517699191).

28466719049 is a wasteful number, since it uses less digits than its factorization.

28466719049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972559.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 28466719049 in words is "twenty-eight billion, four hundred sixty-six million, seven hundred nineteen thousand, forty-nine".

Divisors: 1 19 1543 29317 970997 18448943 1498248371 28466719049