Base | Representation |
---|---|
bin | 10001000010100010… |
… | …011111100101001000 |
3 | 1202020002112122120210 |
4 | 101002202133211020 |
5 | 244432312121223 |
6 | 12223303121120 |
7 | 1215253125243 |
oct | 210242374510 |
9 | 52202478523 |
10 | 18296207688 |
11 | 7839806700 |
12 | 36674431a0 |
13 | 19577011c5 |
14 | c57cd425a |
15 | 7213b8893 |
hex | 44289f948 |
18296207688 has 192 divisors, whose sum is σ = 53175144960. Its totient is φ = 5233536000.
The previous prime is 18296207651. The next prime is 18296207689. The reversal of 18296207688 is 88670269281.
It is a super-3 number, since 3×182962076883 (a number of 32 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (18296207689) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3688506 + ... + 3693462.
It is an arithmetic number, because the mean of its divisors is an integer number (276953880).
Almost surely, 218296207688 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 18296207688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26587572480).
18296207688 is an abundant number, since it is smaller than the sum of its proper divisors (34878937272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18296207688 is a wasteful number, since it uses less digits than its factorization.
18296207688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5060 (or 5045 counting only the distinct ones).
The product of its (nonzero) digits is 4644864, while the sum is 57.
The spelling of 18296207688 in words is "eighteen billion, two hundred ninety-six million, two hundred seven thousand, six hundred eighty-eight".
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