Base | Representation |
---|---|
bin | 1100110100010100… |
… | …10000101000110101 |
3 | 122202120110201001021 |
4 | 12122022100220311 |
5 | 103043111120044 |
6 | 3054455101141 |
7 | 332345331334 |
oct | 63212205065 |
9 | 18676421037 |
10 | 6881348149 |
11 | 2a11383795 |
12 | 14006717b1 |
13 | 858861850 |
14 | 493cb1d1b |
15 | 2a41cce84 |
hex | 19a290a35 |
6881348149 has 16 divisors (see below), whose sum is σ = 7448313600. Its totient is φ = 6319849536.
The previous prime is 6881348129. The next prime is 6881348153. The reversal of 6881348149 is 9418431886.
6881348149 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 6881348149 - 231 = 4733864501 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 6881348096 and 6881348105.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6881348129) 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, 2339922 + ... + 2342860.
It is an arithmetic number, because the mean of its divisors is an integer number (465519600).
Almost surely, 26881348149 is an apocalyptic number.
It is an amenable number.
6881348149 is a deficient number, since it is larger than the sum of its proper divisors (566965451).
6881348149 is a wasteful number, since it uses less digits than its factorization.
6881348149 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3804.
The product of its digits is 1327104, while the sum is 52.
The square root of 6881348149 is about 82953.8917049707. The cubic root of 6881348149 is about 1902.0613038866.
The spelling of 6881348149 in words is "six billion, eight hundred eighty-one million, three hundred forty-eight thousand, one hundred forty-nine".
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