Base | Representation |
---|---|
bin | 110101101011… |
… | …0011000011000 |
3 | 1221221201022020 |
4 | 1223112120120 |
5 | 24201003310 |
6 | 2443054440 |
7 | 461123652 |
oct | 153263030 |
9 | 57851266 |
10 | 28141080 |
11 | 149808a0 |
12 | 9511420 |
13 | 5aa3b36 |
14 | 3a476d2 |
15 | 270d170 |
hex | 1ad6618 |
28141080 has 64 divisors (see below), whose sum is σ = 92102400. Its totient is φ = 6821760.
The previous prime is 28141079. The next prime is 28141081. The reversal of 28141080 is 8014182.
It is an interprime number because it is at equal distance from previous prime (28141079) and next prime (28141081).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 28141080.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28141081) 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, 9340 + ... + 11979.
It is an arithmetic number, because the mean of its divisors is an integer number (1439100).
Almost surely, 228141080 is an apocalyptic number.
28141080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28141080 is an abundant number, since it is smaller than the sum of its proper divisors (63961320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28141080 is a wasteful number, since it uses less digits than its factorization.
28141080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21344 (or 21340 counting only the distinct ones).
The product of its (nonzero) digits is 512, while the sum is 24.
The square root of 28141080 is about 5304.8166792077. The cubic root of 28141080 is about 304.1680453639.
The spelling of 28141080 in words is "twenty-eight million, one hundred forty-one thousand, eighty".
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