Base | Representation |
---|---|
bin | 10000111000011011… |
… | …000100011100010000 |
3 | 1201210021012001210210 |
4 | 100320123010130100 |
5 | 244110340124420 |
6 | 12154401324120 |
7 | 1211122421520 |
oct | 207033043420 |
9 | 51707161723 |
10 | 18126489360 |
11 | 7761a26821 |
12 | 361a636640 |
13 | 192b4ba165 |
14 | c3d555680 |
15 | 7115419e0 |
hex | 4386c4710 |
18126489360 has 160 divisors (see below), whose sum is σ = 67997290752. Its totient is φ = 3899473920.
The previous prime is 18126489341. The next prime is 18126489371. The reversal of 18126489360 is 6398462181.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288781 + ... + 345900.
Almost surely, 218126489360 is an apocalyptic number.
18126489360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
18126489360 is an abundant number, since it is smaller than the sum of its proper divisors (49870801392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18126489360 is a wasteful number, since it uses less digits than its factorization.
18126489360 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 634721 (or 634715 counting only the distinct ones).
The product of its (nonzero) digits is 497664, while the sum is 48.
The spelling of 18126489360 in words is "eighteen billion, one hundred twenty-six million, four hundred eighty-nine thousand, three hundred sixty".
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