Base | Representation |
---|---|
bin | 100111010001111… |
… | …1011100011010010 |
3 | 10101212010110110100 |
4 | 1032203323203102 |
5 | 10144404314220 |
6 | 334442113230 |
7 | 44443112331 |
oct | 11643734322 |
9 | 3355113410 |
10 | 1318041810 |
11 | 617000358 |
12 | 3094ab816 |
13 | 1800b3cc7 |
14 | c7099d18 |
15 | 7aaa5d90 |
hex | 4e8fb8d2 |
1318041810 has 24 divisors (see below), whose sum is σ = 3426908940. Its totient is φ = 351477792.
The previous prime is 1318041721. The next prime is 1318041811. The reversal of 1318041810 is 181408131.
It can be written as a sum of positive squares in 2 ways, for example, as 1190871081 + 127170729 = 34509^2 + 11277^2 .
It is a super-2 number, since 2×13180418102 = 3474468425816152200, which contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1318041811) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7322365 + ... + 7322544.
Almost surely, 21318041810 is an apocalyptic number.
1318041810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1318041810 is an abundant number, since it is smaller than the sum of its proper divisors (2108867130).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1318041810 is a wasteful number, since it uses less digits than its factorization.
1318041810 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14644922 (or 14644919 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 27.
The square root of 1318041810 is about 36304.8455443623. The cubic root of 1318041810 is about 1096.4186029755.
Adding to 1318041810 its reverse (181408131), we get a palindrome (1499449941).
The spelling of 1318041810 in words is "one billion, three hundred eighteen million, forty-one thousand, eight hundred ten".
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