Base | Representation |
---|---|
bin | 10000110110111110… |
… | …111101011100101110 |
3 | 1201201120202022212120 |
4 | 100312332331130232 |
5 | 244033144442340 |
6 | 12152140013410 |
7 | 1210410244401 |
oct | 206676753456 |
9 | 51646668776 |
10 | 18102343470 |
11 | 774a334642 |
12 | 3612531266 |
13 | 19264b4953 |
14 | c3a26bd38 |
15 | 70e3724d0 |
hex | 436fbd72e |
18102343470 has 32 divisors (see below), whose sum is σ = 43470704160. Its totient is φ = 4824504960.
The previous prime is 18102343463. The next prime is 18102343481. The reversal of 18102343470 is 7434320181.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121065 + ... + 225524.
It is an arithmetic number, because the mean of its divisors is an integer number (1358459505).
Almost surely, 218102343470 is an apocalyptic number.
18102343470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18102343470 is an abundant number, since it is smaller than the sum of its proper divisors (25368360690).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18102343470 is a wasteful number, since it uses less digits than its factorization.
18102343470 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 348340.
The product of its (nonzero) digits is 16128, while the sum is 33.
The spelling of 18102343470 in words is "eighteen billion, one hundred two million, three hundred forty-three thousand, four hundred seventy".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •