Base | Representation |
---|---|
bin | 10000110110000010… |
… | …000001101010010001 |
3 | 1201200110200210022020 |
4 | 100312002001222101 |
5 | 244020102314222 |
6 | 12150405402053 |
7 | 1210124415336 |
oct | 206602015221 |
9 | 51613623266 |
10 | 18086369937 |
11 | 7741314479 |
12 | 3609109329 |
13 | 19230b115c |
14 | c380b098d |
15 | 70cc6965c |
hex | 436081a91 |
18086369937 has 16 divisors (see below), whose sum is σ = 24530703360. Its totient is φ = 11849922000.
The previous prime is 18086369927. The next prime is 18086369947. The reversal of 18086369937 is 73996368081.
It is an interprime number because it is at equal distance from previous prime (18086369927) and next prime (18086369947).
It is not a de Polignac number, because 18086369937 - 27 = 18086369809 is a prime.
It is not an unprimeable number, because it can be changed into a prime (18086369927) 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, 736812 + ... + 760962.
It is an arithmetic number, because the mean of its divisors is an integer number (1533168960).
Almost surely, 218086369937 is an apocalyptic number.
It is an amenable number.
18086369937 is a deficient number, since it is larger than the sum of its proper divisors (6444333423).
18086369937 is a wasteful number, since it uses less digits than its factorization.
18086369937 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28444.
The product of its (nonzero) digits is 11757312, while the sum is 60.
The spelling of 18086369937 in words is "eighteen billion, eighty-six million, three hundred sixty-nine thousand, nine hundred thirty-seven".
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