Base | Representation |
---|---|
bin | 1110001011001111… |
… | …0011101100000001 |
3 | 100211012012210210211 |
4 | 3202303303230001 |
5 | 30243114404443 |
6 | 1425331154121 |
7 | 163203636322 |
oct | 34263635401 |
9 | 10735183724 |
10 | 3805231873 |
11 | 1682a55033 |
12 | 8a2445941 |
13 | 4884798c1 |
14 | 281534449 |
15 | 17410119d |
hex | e2cf3b01 |
3805231873 has 4 divisors (see below), whose sum is σ = 4029069060. Its totient is φ = 3581394688.
The previous prime is 3805231777. The next prime is 3805231877. The reversal of 3805231873 is 3781325083.
3805231873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3781325083 = 2539 ⋅1489297.
It can be written as a sum of positive squares in 2 ways, for example, as 3117323889 + 687907984 = 55833^2 + 26228^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-3805231873 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (3805231877) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111918568 + ... + 111918601.
It is an arithmetic number, because the mean of its divisors is an integer number (1007267265).
Almost surely, 23805231873 is an apocalyptic number.
It is an amenable number.
3805231873 is a deficient number, since it is larger than the sum of its proper divisors (223837187).
3805231873 is a wasteful number, since it uses less digits than its factorization.
3805231873 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 223837186.
The product of its (nonzero) digits is 120960, while the sum is 40.
The square root of 3805231873 is about 61686.5615268026. The cubic root of 3805231873 is about 1561.2065880237.
The spelling of 3805231873 in words is "three billion, eight hundred five million, two hundred thirty-one thousand, eight hundred seventy-three".
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