Base | Representation |
---|---|
bin | 1111001111001000… |
… | …01110100000110010 |
3 | 210010002010002121021 |
4 | 13213210032200302 |
5 | 113223040011233 |
6 | 3431405450054 |
7 | 406464600613 |
oct | 74744164062 |
9 | 23102102537 |
10 | 8180000818 |
11 | 3518440760 |
12 | 170357092a |
13 | a04917492 |
14 | 578561c0a |
15 | 32d203e2d |
hex | 1e790e832 |
8180000818 has 16 divisors (see below), whose sum is σ = 13418197920. Its totient is φ = 3709087200.
The previous prime is 8180000813. The next prime is 8180000827.
8180000818 is nontrivially palindromic in base 10.
8180000818 is a strobogrammatic number because it is the same when read upside-down.
It is not an unprimeable number, because it can be changed into a prime (8180000813) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445548 + ... + 463543.
It is an arithmetic number, because the mean of its divisors is an integer number (838637370).
Almost surely, 28180000818 is an apocalyptic number.
8180000818 is a deficient number, since it is larger than the sum of its proper divisors (5238197102).
8180000818 is a wasteful number, since it uses less digits than its factorization.
8180000818 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 909513.
The product of its (nonzero) digits is 4096, while the sum is 34.
The square root of 8180000818 is about 90443.3569589276. The cubic root of 8180000818 is about 2014.8889526613. Note that the first 3 decimals are identical.
It can be divided in two parts, 8180000 and 818, that multiplied together give a square (6691240000 = 818002).
The spelling of 8180000818 in words is "eight billion, one hundred eighty million, eight hundred eighteen", and thus it is an aban number.
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