Base | Representation |
---|---|
bin | 10001000111010101… |
… | …100011100100100101 |
3 | 1202102201000012100200 |
4 | 101013111203210211 |
5 | 300113413432440 |
6 | 12235300301113 |
7 | 1220251251246 |
oct | 210725434445 |
9 | 52381005320 |
10 | 18376702245 |
11 | 7880195430 |
12 | 368a3a1799 |
13 | 196b2a5715 |
14 | c64888ccd |
15 | 7284b8c30 |
hex | 447563925 |
18376702245 has 144 divisors (see below), whose sum is σ = 38861484480. Its totient is φ = 7943270400.
The previous prime is 18376702237. The next prime is 18376702297. The reversal of 18376702245 is 54220767381.
It is not a de Polignac number, because 18376702245 - 23 = 18376702237 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 18376702245.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2714665 + ... + 2721425.
It is an arithmetic number, because the mean of its divisors is an integer number (269871420).
Almost surely, 218376702245 is an apocalyptic number.
18376702245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
18376702245 is an abundant number, since it is smaller than the sum of its proper divisors (20484782235).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18376702245 is a wasteful number, since it uses less digits than its factorization.
18376702245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6836 (or 6816 counting only the distinct ones).
The product of its (nonzero) digits is 564480, while the sum is 45.
The spelling of 18376702245 in words is "eighteen billion, three hundred seventy-six million, seven hundred two thousand, two hundred forty-five".
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