Base | Representation |
---|---|
bin | 10000110011010001… |
… | …110100110110111101 |
3 | 1201120020210002211122 |
4 | 100303101310312331 |
5 | 243421241231112 |
6 | 12142035400325 |
7 | 1206024000266 |
oct | 206321646675 |
9 | 51506702748 |
10 | 18040180157 |
11 | 77182363aa |
12 | 35b57530a5 |
13 | 191665b11c |
14 | c31cc996d |
15 | 708b93872 |
hex | 433474dbd |
18040180157 has 8 divisors (see below), whose sum is σ = 18826810560. Its totient is φ = 17253739360.
The previous prime is 18040180153. The next prime is 18040180181. The reversal of 18040180157 is 75108104081.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 18040180157 - 22 = 18040180153 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18040180153) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167894 + ... + 253512.
It is an arithmetic number, because the mean of its divisors is an integer number (2353351320).
Almost surely, 218040180157 is an apocalyptic number.
It is an amenable number.
18040180157 is a deficient number, since it is larger than the sum of its proper divisors (786630403).
18040180157 is an equidigital number, since it uses as much as digits as its factorization.
18040180157 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 94803.
The product of its (nonzero) digits is 8960, while the sum is 35.
The spelling of 18040180157 in words is "eighteen billion, forty million, one hundred eighty thousand, one hundred fifty-seven".
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