Base | Representation |
---|---|
bin | 110111000101… |
… | …1110001100110 |
3 | 2000100110111101 |
4 | 1232023301212 |
5 | 24343242240 |
6 | 2511030314 |
7 | 500340055 |
oct | 156136146 |
9 | 60313441 |
10 | 28884070 |
11 | 15339036 |
12 | 980b39a |
13 | 5ca4087 |
14 | 3b9c39c |
15 | 280839a |
hex | 1b8bc66 |
28884070 has 16 divisors (see below), whose sum is σ = 52079760. Its totient is φ = 11533984.
The previous prime is 28884017. The next prime is 28884073. The reversal of 28884070 is 7048882.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28884073) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4716 + ... + 8944.
It is an arithmetic number, because the mean of its divisors is an integer number (3254985).
Almost surely, 228884070 is an apocalyptic number.
28884070 is a deficient number, since it is larger than the sum of its proper divisors (23195690).
28884070 is a wasteful number, since it uses less digits than its factorization.
28884070 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4919.
The product of its (nonzero) digits is 28672, while the sum is 37.
The square root of 28884070 is about 5374.3901979666. The cubic root of 28884070 is about 306.8217407776.
The spelling of 28884070 in words is "twenty-eight million, eight hundred eighty-four thousand, seventy".
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