Base | Representation |
---|---|
bin | 11010111000111110… |
… | …011010010000000110 |
3 | 2202112012222002220210 |
4 | 122320332122100012 |
5 | 433113013000344 |
6 | 21133020140250 |
7 | 2041334624643 |
oct | 327076322006 |
9 | 82465862823 |
10 | 28873171974 |
11 | 112771754a9 |
12 | 5719697686 |
13 | 2951ab015a |
14 | 157c924dca |
15 | b3ec43db9 |
hex | 6b8f9a406 |
28873171974 has 64 divisors (see below), whose sum is σ = 59680558080. Its totient is φ = 9308960640.
The previous prime is 28873171973. The next prime is 28873171979. The reversal of 28873171974 is 47917137882.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28873171973) 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 31 ways as a sum of consecutive naturals, for example, 4779684 + ... + 4785720.
It is an arithmetic number, because the mean of its divisors is an integer number (932508720).
Almost surely, 228873171974 is an apocalyptic number.
28873171974 is an abundant number, since it is smaller than the sum of its proper divisors (30807386106).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28873171974 is a wasteful number, since it uses less digits than its factorization.
28873171974 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6325.
The product of its digits is 4741632, while the sum is 57.
The spelling of 28873171974 in words is "twenty-eight billion, eight hundred seventy-three million, one hundred seventy-one thousand, nine hundred seventy-four".
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