Base | Representation |
---|---|
bin | 1100110011111011… |
… | …10011000011100100 |
3 | 122202100022201201002 |
4 | 12121331303003210 |
5 | 103041242100002 |
6 | 3054301052432 |
7 | 332305504010 |
oct | 63175630344 |
9 | 18670281632 |
10 | 6878081252 |
11 | 2a0a552279 |
12 | 13bb557118 |
13 | 857c89883 |
14 | 4936a1540 |
15 | 2a3c85002 |
hex | 199f730e4 |
6878081252 has 12 divisors (see below), whose sum is σ = 13756162560. Its totient is φ = 2947749096.
The previous prime is 6878081227. The next prime is 6878081281. The reversal of 6878081252 is 2521808786.
6878081252 is an admirable number.
It is a super-2 number, since 2×68780812522 = 94616003418227775008, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 6878081197 and 6878081206.
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, 122822852 + ... + 122822907.
It is an arithmetic number, because the mean of its divisors is an integer number (1146346880).
Almost surely, 26878081252 is an apocalyptic number.
It is an amenable number.
6878081252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6878081252 is a wasteful number, since it uses less digits than its factorization.
6878081252 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 245645770 (or 245645768 counting only the distinct ones).
The product of its (nonzero) digits is 430080, while the sum is 47.
The square root of 6878081252 is about 82934.1983261429. The cubic root of 6878081252 is about 1901.7602571621.
The spelling of 6878081252 in words is "six billion, eight hundred seventy-eight million, eighty-one thousand, two hundred fifty-two".
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