Base | Representation |
---|---|
bin | 10000111000010110… |
… | …011111101110101101 |
3 | 1201210011221011011100 |
4 | 100320112133232231 |
5 | 244110033243123 |
6 | 12154315513313 |
7 | 1211106266166 |
oct | 207026375655 |
9 | 51704834140 |
10 | 18125290413 |
11 | 7761287a5a |
12 | 361a158839 |
13 | 192b18a519 |
14 | c3d32276d |
15 | 7113a6643 |
hex | 43859fbad |
18125290413 has 12 divisors (see below), whose sum is σ = 26217397440. Its totient is φ = 12066716616.
The previous prime is 18125290399. The next prime is 18125290457. The reversal of 18125290413 is 31409252181.
It is not a de Polignac number, because 18125290413 - 217 = 18125159341 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18125291413) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1394031 + ... + 1406972.
It is an arithmetic number, because the mean of its divisors is an integer number (2184783120).
Almost surely, 218125290413 is an apocalyptic number.
It is an amenable number.
18125290413 is a deficient number, since it is larger than the sum of its proper divisors (8092107027).
18125290413 is a wasteful number, since it uses less digits than its factorization.
18125290413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2801728 (or 2801725 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 36.
The spelling of 18125290413 in words is "eighteen billion, one hundred twenty-five million, two hundred ninety thousand, four hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.090 sec. • engine limits •