Base | Representation |
---|---|
bin | 1100110010010110… |
… | …11100100101101111 |
3 | 122201102111010210001 |
4 | 12121023130211233 |
5 | 103024402211111 |
6 | 3053110125131 |
7 | 332055351220 |
oct | 63113344557 |
9 | 18642433701 |
10 | 6864882031 |
11 | 2a03057527 |
12 | 13b70507a7 |
13 | 855317a97 |
14 | 491a27247 |
15 | 2a2a291c1 |
hex | 1992dc96f |
6864882031 has 4 divisors (see below), whose sum is σ = 7845579472. Its totient is φ = 5884184592.
The previous prime is 6864882007. The next prime is 6864882043. The reversal of 6864882031 is 1302884686.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1302884686 = 2 ⋅651442343.
It is a cyclic number.
It is not a de Polignac number, because 6864882031 - 29 = 6864881519 is a prime.
It is a super-2 number, since 2×68648820312 = 94253210599093369922, 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 (6864882071) 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 3 ways as a sum of consecutive naturals, for example, 490348710 + ... + 490348723.
It is an arithmetic number, because the mean of its divisors is an integer number (1961394868).
Almost surely, 26864882031 is an apocalyptic number.
6864882031 is a deficient number, since it is larger than the sum of its proper divisors (980697441).
6864882031 is an equidigital number, since it uses as much as digits as its factorization.
6864882031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 980697440.
The product of its (nonzero) digits is 442368, while the sum is 46.
The square root of 6864882031 is about 82854.5836450827. The cubic root of 6864882031 is about 1900.5429686422.
The spelling of 6864882031 in words is "six billion, eight hundred sixty-four million, eight hundred eighty-two thousand, thirty-one".
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