Base | Representation |
---|---|
bin | 110100101010… |
… | …010101010101 |
3 | 221222100202001 |
4 | 310222111111 |
5 | 12013224020 |
6 | 1211515301 |
7 | 225224323 |
oct | 64522525 |
9 | 27870661 |
10 | 13804885 |
11 | 78798a6 |
12 | 4758b31 |
13 | 2b24693 |
14 | 1b94d13 |
15 | 132a50a |
hex | d2a555 |
13804885 has 16 divisors (see below), whose sum is σ = 17269632. Its totient is φ = 10584000.
The previous prime is 13804883. The next prime is 13804891. The reversal of 13804885 is 58840831.
13804885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
13804885 is a nontrivial binomial coefficient, being equal to C(5255, 2).
It is not a de Polignac number, because 13804885 - 21 = 13804883 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (37).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13804883) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12610 + ... + 13660.
It is an arithmetic number, because the mean of its divisors is an integer number (1079352).
Almost surely, 213804885 is an apocalyptic number.
13804885 is the 5254-th triangular number.
13804885 is the 1752-nd centered nonagonal number.
It is an amenable number.
13804885 is a deficient number, since it is larger than the sum of its proper divisors (3464747).
13804885 is a wasteful number, since it uses less digits than its factorization.
13804885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1164.
The product of its (nonzero) digits is 30720, while the sum is 37.
The square root of 13804885 is about 3715.4925649233. The cubic root of 13804885 is about 239.8893297620.
The spelling of 13804885 in words is "thirteen million, eight hundred four thousand, eight hundred eighty-five".
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