Base | Representation |
---|---|
bin | 1011010001100… |
… | …0111100110011 |
3 | 10021222111002200 |
4 | 2310120330303 |
5 | 44101204430 |
6 | 4405314243 |
7 | 1112641140 |
oct | 264307463 |
9 | 107874080 |
10 | 47288115 |
11 | 24769296 |
12 | 13a05983 |
13 | 9a48c44 |
14 | 63cd3c7 |
15 | 4241460 |
hex | 2d18f33 |
47288115 has 96 divisors (see below), whose sum is σ = 100279296. Its totient is φ = 20148480.
The previous prime is 47288107. The next prime is 47288123. The reversal of 47288115 is 51188274.
It is an interprime number because it is at equal distance from previous prime (47288107) and next prime (47288123).
It is not a de Polignac number, because 47288115 - 23 = 47288107 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 47288115.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 441892 + ... + 441998.
It is an arithmetic number, because the mean of its divisors is an integer number (1044576).
Almost surely, 247288115 is an apocalyptic number.
47288115 is a gapful number since it is divisible by the number (45) formed by its first and last digit.
47288115 is an abundant number, since it is smaller than the sum of its proper divisors (52991181).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47288115 is a wasteful number, since it uses less digits than its factorization.
47288115 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 209 (or 206 counting only the distinct ones).
The product of its digits is 17920, while the sum is 36.
The square root of 47288115 is about 6876.6354418422. The cubic root of 47288115 is about 361.6185225709.
The spelling of 47288115 in words is "forty-seven million, two hundred eighty-eight thousand, one hundred fifteen".
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