Base | Representation |
---|---|
bin | 10000111111001010… |
… | …000001101010100000 |
3 | 1202002010202200012102 |
4 | 100333022001222200 |
5 | 244323300241143 |
6 | 12213514545532 |
7 | 1213663604123 |
oct | 207712015240 |
9 | 52063680172 |
10 | 18239462048 |
11 | 780a778885 |
12 | 36504382a8 |
13 | 1948a235c2 |
14 | c505623ba |
15 | 71b40a0b8 |
hex | 43f281aa0 |
18239462048 has 96 divisors (see below), whose sum is σ = 37810789632. Its totient is φ = 8651059200.
The previous prime is 18239462039. The next prime is 18239462057. The reversal of 18239462048 is 84026493281.
It is an interprime number because it is at equal distance from previous prime (18239462039) and next prime (18239462057).
It is a junction number, because it is equal to n+sod(n) for n = 18239461993 and 18239462011.
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, 15288140 + ... + 15289332.
It is an arithmetic number, because the mean of its divisors is an integer number (393862392).
Almost surely, 218239462048 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18239462048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18905394816).
18239462048 is an abundant number, since it is smaller than the sum of its proper divisors (19571327584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18239462048 is a wasteful number, since it uses less digits than its factorization.
18239462048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1558 (or 1550 counting only the distinct ones).
The product of its (nonzero) digits is 663552, while the sum is 47.
It can be divided in two parts, 182394 and 62048, that added together give a palindrome (244442).
The spelling of 18239462048 in words is "eighteen billion, two hundred thirty-nine million, four hundred sixty-two thousand, forty-eight".
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