Base | Representation |
---|---|
bin | 1000001100100111001111 |
3 | 11001011121202 |
4 | 20030213033 |
5 | 1022230230 |
6 | 114020115 |
7 | 24156524 |
oct | 10144717 |
9 | 4034552 |
10 | 2148815 |
11 | 1238489 |
12 | 87763b |
13 | 5a30b6 |
14 | 3dd14b |
15 | 2c6a45 |
hex | 20c9cf |
2148815 has 8 divisors (see below), whose sum is σ = 2615328. Its totient is φ = 1694560.
The previous prime is 2148803. The next prime is 2148857. The reversal of 2148815 is 5188412.
2148815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2148815 - 24 = 2148799 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2672 + ... + 3381.
It is an arithmetic number, because the mean of its divisors is an integer number (326916).
22148815 is an apocalyptic number.
2148815 is a deficient number, since it is larger than the sum of its proper divisors (466513).
2148815 is an equidigital number, since it uses as much as digits as its factorization.
2148815 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6129.
The product of its digits is 2560, while the sum is 29.
The square root of 2148815 is about 1465.8836925213. The cubic root of 2148815 is about 129.0425715311.
The spelling of 2148815 in words is "two million, one hundred forty-eight thousand, eight hundred fifteen".
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