Base | Representation |
---|---|
bin | 100101100000001001011 |
3 | 2022102200220 |
4 | 10230001023 |
5 | 303311000 |
6 | 42201123 |
7 | 13305504 |
oct | 4540113 |
9 | 2272626 |
10 | 1228875 |
11 | 76a2aa |
12 | 4b31a3 |
13 | 34045b |
14 | 23dbab |
15 | 1941a0 |
hex | 12c04b |
1228875 has 32 divisors (see below), whose sum is σ = 2134080. Its totient is φ = 627200.
The previous prime is 1228861. The next prime is 1228883. The reversal of 1228875 is 5788221.
1228875 = T73 + T74 + ... + T197.
It is not a de Polignac number, because 1228875 - 216 = 1163339 is a prime.
It is an Ulam number.
Its product of digits (8960) is a multiple of the sum of its prime factors (160).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10819 + ... + 10931.
It is an arithmetic number, because the mean of its divisors is an integer number (66690).
21228875 is an apocalyptic number.
1228875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
1228875 is a deficient number, since it is larger than the sum of its proper divisors (905205).
1228875 is a wasteful number, since it uses less digits than its factorization.
1228875 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 160 (or 150 counting only the distinct ones).
The product of its digits is 8960, while the sum is 33.
The square root of 1228875 is about 1108.5463454452. The cubic root of 1228875 is about 107.1114511125. Note that the first 3 decimals are identical.
It can be divided in two parts, 12288 and 75, that multiplied together give a square (921600 = 9602).
The spelling of 1228875 in words is "one million, two hundred twenty-eight thousand, eight hundred seventy-five".
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