Base | Representation |
---|---|
bin | 11010100011100100… |
… | …011011000100101000 |
3 | 2201121012012012210120 |
4 | 122203210123010220 |
5 | 431344043204211 |
6 | 21033230443240 |
7 | 2026414216200 |
oct | 324344330450 |
9 | 81535165716 |
10 | 28514038056 |
11 | 11102481909 |
12 | 5639363520 |
13 | 28c557968a |
14 | 1546d5b400 |
15 | b1d453d06 |
hex | 6a391b128 |
28514038056 has 48 divisors (see below), whose sum is σ = 82923481440. Its totient is φ = 8146867680.
The previous prime is 28514038013. The next prime is 28514038117. The reversal of 28514038056 is 65083041582.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a junction number, because it is equal to n+sod(n) for n = 28514037999 and 28514038017.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12122140 + ... + 12124491.
It is an arithmetic number, because the mean of its divisors is an integer number (1727572530).
Almost surely, 228514038056 is an apocalyptic number.
It is an amenable number.
28514038056 is an abundant number, since it is smaller than the sum of its proper divisors (54409443384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28514038056 is a wasteful number, since it uses less digits than its factorization.
28514038056 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24246654 (or 24246643 counting only the distinct ones).
The product of its (nonzero) digits is 230400, while the sum is 42.
The spelling of 28514038056 in words is "twenty-eight billion, five hundred fourteen million, thirty-eight thousand, fifty-six".
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