Base | Representation |
---|---|
bin | 110101011111… |
… | …0000000101100 |
3 | 1221202122101012 |
4 | 1222332000230 |
5 | 24134310020 |
6 | 2441004352 |
7 | 460226642 |
oct | 152760054 |
9 | 57678335 |
10 | 28041260 |
11 | 149128a5 |
12 | 94836b8 |
13 | 5a6a580 |
14 | 3a1d192 |
15 | 26dd7c5 |
hex | 1abe02c |
28041260 has 48 divisors (see below), whose sum is σ = 65620800. Its totient is φ = 9993984.
The previous prime is 28041257. The next prime is 28041263. The reversal of 28041260 is 6214082.
It is an interprime number because it is at equal distance from previous prime (28041257) and next prime (28041263).
It is not an unprimeable number, because it can be changed into a prime (28041263) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5681 + ... + 9399.
It is an arithmetic number, because the mean of its divisors is an integer number (1367100).
Almost surely, 228041260 is an apocalyptic number.
28041260 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 28041260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32810400).
28041260 is an abundant number, since it is smaller than the sum of its proper divisors (37579540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28041260 is a wasteful number, since it uses less digits than its factorization.
28041260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3770 (or 3768 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 23.
The square root of 28041260 is about 5295.3998904710. The cubic root of 28041260 is about 303.8079783426.
The spelling of 28041260 in words is "twenty-eight million, forty-one thousand, two hundred sixty".
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