Base | Representation |
---|---|
bin | 10001001110101011… |
… | …110001000001100110 |
3 | 1202202021221121010000 |
4 | 101032223301001212 |
5 | 300341442340110 |
6 | 12255422242130 |
7 | 1223306052051 |
oct | 211653610146 |
9 | 52667847100 |
10 | 18499965030 |
11 | 79338255a8 |
12 | 3703726346 |
13 | 198a9a2791 |
14 | c76db3a98 |
15 | 7342161c0 |
hex | 44eaf1066 |
18499965030 has 80 divisors (see below), whose sum is σ = 52362517680. Its totient is φ = 4673671488.
The previous prime is 18499964999. The next prime is 18499965031. The reversal of 18499965030 is 3056999481.
18499965030 is a `hidden beast` number, since 1 + 8 + 49 + 9 + 96 + 503 + 0 = 666.
It is a super-2 number, since 2×184999650302 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18499965031) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 585649 + ... + 616428.
It is an arithmetic number, because the mean of its divisors is an integer number (654531471).
Almost surely, 218499965030 is an apocalyptic number.
18499965030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18499965030 is an abundant number, since it is smaller than the sum of its proper divisors (33862552650).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18499965030 is a wasteful number, since it uses less digits than its factorization.
18499965030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1202115 (or 1202106 counting only the distinct ones).
The product of its (nonzero) digits is 2099520, while the sum is 54.
The spelling of 18499965030 in words is "eighteen billion, four hundred ninety-nine million, nine hundred sixty-five thousand, thirty".
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