Base | Representation |
---|---|
bin | 10001000000000110… |
… | …110110101110101001 |
3 | 1202010020202210222202 |
4 | 101000012312232221 |
5 | 244341341024131 |
6 | 12215244425545 |
7 | 1214246256653 |
oct | 210006665651 |
9 | 52106683882 |
10 | 18255408041 |
11 | 781877a292 |
12 | 36558482b5 |
13 | 194c1176c0 |
14 | c527136d3 |
15 | 71ca09bcb |
hex | 4401b6ba9 |
18255408041 has 16 divisors (see below), whose sum is σ = 20346273360. Its totient is φ = 16263125760.
The previous prime is 18255408023. The next prime is 18255408049. The reversal of 18255408041 is 14080455281.
It can be written as a sum of positive squares in 8 ways, for example, as 293779600 + 17961628441 = 17140^2 + 134021^2 .
It is not a de Polignac number, because 18255408041 - 218 = 18255145897 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 18255407986 and 18255408004.
It is not an unprimeable number, because it can be changed into a prime (18255408049) 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, 1006271 + ... + 1024251.
It is an arithmetic number, because the mean of its divisors is an integer number (1271642085).
Almost surely, 218255408041 is an apocalyptic number.
It is an amenable number.
18255408041 is a deficient number, since it is larger than the sum of its proper divisors (2090865319).
18255408041 is a wasteful number, since it uses less digits than its factorization.
18255408041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20716.
The product of its (nonzero) digits is 51200, while the sum is 38.
The spelling of 18255408041 in words is "eighteen billion, two hundred fifty-five million, four hundred eight thousand, forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •