Base | Representation |
---|---|
bin | 110111010010… |
… | …0101100110000 |
3 | 2000112122112111 |
4 | 1232210230300 |
5 | 24410024120 |
6 | 2513135104 |
7 | 501243520 |
oct | 156445460 |
9 | 60478474 |
10 | 28986160 |
11 | 153a8805 |
12 | 985a494 |
13 | 600b698 |
14 | 3bc7680 |
15 | 282875a |
hex | 1ba4b30 |
28986160 has 80 divisors (see below), whose sum is σ = 77709312. Its totient is φ = 9849600.
The previous prime is 28986151. The next prime is 28986211. The reversal of 28986160 is 6168982.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (40).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106825 + ... + 107095.
Almost surely, 228986160 is an apocalyptic number.
28986160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28986160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38854656).
28986160 is an abundant number, since it is smaller than the sum of its proper divisors (48723152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28986160 is a wasteful number, since it uses less digits than its factorization.
28986160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 482 (or 476 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 40.
The square root of 28986160 is about 5383.8796420425. The cubic root of 28986160 is about 307.1828002342.
The spelling of 28986160 in words is "twenty-eight million, nine hundred eighty-six thousand, one hundred sixty".
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