Base | Representation |
---|---|
bin | 11010110000010110… |
… | …110011100111000110 |
3 | 2202011010212200112110 |
4 | 122300112303213012 |
5 | 432314003303413 |
6 | 21110413001450 |
7 | 2034630556503 |
oct | 326026634706 |
9 | 82133780473 |
10 | 28728572358 |
11 | 11202591692 |
12 | 5699183286 |
13 | 292ab52355 |
14 | 15676444aa |
15 | b321ce8c3 |
hex | 6b05b39c6 |
28728572358 has 8 divisors (see below), whose sum is σ = 57457144728. Its totient is φ = 9576190784.
The previous prime is 28728572347. The next prime is 28728572377. The reversal of 28728572358 is 85327582782.
It is a sphenic number, since it is the product of 3 distinct primes.
28728572358 is an admirable number.
It is a junction number, because it is equal to n+sod(n) for n = 28728572298 and 28728572307.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2394047691 + ... + 2394047702.
It is an arithmetic number, because the mean of its divisors is an integer number (7182143091).
Almost surely, 228728572358 is an apocalyptic number.
28728572358 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28728572358 is a wasteful number, since it uses less digits than its factorization.
28728572358 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4788095398.
The product of its digits is 15052800, while the sum is 57.
The spelling of 28728572358 in words is "twenty-eight billion, seven hundred twenty-eight million, five hundred seventy-two thousand, three hundred fifty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •