Base | Representation |
---|---|
bin | 1100110100010011… |
… | …11111100001100101 |
3 | 122202120100010220010 |
4 | 12122021333201211 |
5 | 103043101344203 |
6 | 3054453400433 |
7 | 332344620066 |
oct | 63211774145 |
9 | 18676303803 |
10 | 6881278053 |
11 | 2a11336061 |
12 | 1400639119 |
13 | 858838980 |
14 | 493c9456d |
15 | 2a41b7303 |
hex | 19a27f865 |
6881278053 has 16 divisors (see below), whose sum is σ = 9882323136. Its totient is φ = 4233984000.
The previous prime is 6881278031. The next prime is 6881278109. The reversal of 6881278053 is 3508721886.
It is not a de Polignac number, because 6881278053 - 222 = 6877083749 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 6881277993 and 6881278011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6881278553) 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, 422053 + ... + 438053.
It is an arithmetic number, because the mean of its divisors is an integer number (617645196).
Almost surely, 26881278053 is an apocalyptic number.
It is an amenable number.
6881278053 is a deficient number, since it is larger than the sum of its proper divisors (3001045083).
6881278053 is a wasteful number, since it uses less digits than its factorization.
6881278053 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27044.
The product of its (nonzero) digits is 645120, while the sum is 48.
The square root of 6881278053 is about 82953.4692041267. The cubic root of 6881278053 is about 1902.0548454941.
The spelling of 6881278053 in words is "six billion, eight hundred eighty-one million, two hundred seventy-eight thousand, fifty-three".
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