Base | Representation |
---|---|
bin | 1100101011111010… |
… | …01111001000001111 |
3 | 122120122202202210100 |
4 | 12111331033020033 |
5 | 102422032401411 |
6 | 3043455342143 |
7 | 330531026220 |
oct | 62575171017 |
9 | 18518682710 |
10 | 6810825231 |
11 | 2985595891 |
12 | 13a0b21953 |
13 | 84706c002 |
14 | 488795247 |
15 | 29cdec456 |
hex | 195f4f20f |
6810825231 has 24 divisors (see below), whose sum is σ = 11248244384. Its totient is φ = 3890177280.
The previous prime is 6810825223. The next prime is 6810825317. The reversal of 6810825231 is 1325280186.
It is a happy number.
It is not a de Polignac number, because 6810825231 - 23 = 6810825223 is a prime.
It is a super-2 number, since 2×68108252312 = 92774680654452406722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6810825031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127011 + ... + 172491.
Almost surely, 26810825231 is an apocalyptic number.
6810825231 is a deficient number, since it is larger than the sum of its proper divisors (4437419153).
6810825231 is a wasteful number, since it uses less digits than its factorization.
6810825231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 47871 (or 47868 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 36.
The square root of 6810825231 is about 82527.7240144183. The cubic root of 6810825231 is about 1895.5412744515.
It can be divided in two parts, 68108 and 25231, that added together give a palindrome (93339).
The spelling of 6810825231 in words is "six billion, eight hundred ten million, eight hundred twenty-five thousand, two hundred thirty-one".
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