Base | Representation |
---|---|
bin | 1000001100101000010000 |
3 | 11001011201011 |
4 | 20030220100 |
5 | 1022231010 |
6 | 114020304 |
7 | 24156646 |
oct | 10145020 |
9 | 4034634 |
10 | 2148880 |
11 | 1238538 |
12 | 877694 |
13 | 5a3136 |
14 | 3dd196 |
15 | 2c6a8a |
hex | 20ca10 |
2148880 has 20 divisors (see below), whose sum is σ = 4996332. Its totient is φ = 859520.
The previous prime is 2148877. The next prime is 2148893. The reversal of 2148880 is 888412.
It can be written as a sum of positive squares in 2 ways, for example, as 331776 + 1817104 = 576^2 + 1348^2 .
It is a tau number, because it is divible by the number of its divisors (20).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13351 + ... + 13510.
22148880 is an apocalyptic number.
2148880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2148880 is an abundant number, since it is smaller than the sum of its proper divisors (2847452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2148880 is a wasteful number, since it uses less digits than its factorization.
2148880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26874 (or 26868 counting only the distinct ones).
The product of its (nonzero) digits is 4096, while the sum is 31.
The square root of 2148880 is about 1465.9058632804. The cubic root of 2148880 is about 129.0438726642.
The spelling of 2148880 in words is "two million, one hundred forty-eight thousand, eight hundred eighty".
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