Base | Representation |
---|---|
bin | 110111001100… |
… | …1111101100011 |
3 | 2000110102012120 |
4 | 1232121331203 |
5 | 24402122204 |
6 | 2512155323 |
7 | 501001350 |
oct | 156317543 |
9 | 60412176 |
10 | 28942179 |
11 | 15378762 |
12 | 9838b43 |
13 | 5cc4666 |
14 | 3bb5627 |
15 | 281a6d9 |
hex | 1b99f63 |
28942179 has 8 divisors (see below), whose sum is σ = 44102400. Its totient is φ = 16538376.
The previous prime is 28942169. The next prime is 28942201. The reversal of 28942179 is 97124982.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 28942179 - 219 = 28417891 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 28942179.
It is not an unprimeable number, because it can be changed into a prime (28942159) 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, 689079 + ... + 689120.
It is an arithmetic number, because the mean of its divisors is an integer number (5512800).
Almost surely, 228942179 is an apocalyptic number.
28942179 is a deficient number, since it is larger than the sum of its proper divisors (15160221).
28942179 is a wasteful number, since it uses less digits than its factorization.
28942179 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1378209.
The product of its digits is 72576, while the sum is 42.
The square root of 28942179 is about 5379.7935834008. The cubic root of 28942179 is about 307.0273577108.
The spelling of 28942179 in words is "twenty-eight million, nine hundred forty-two thousand, one hundred seventy-nine".
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