Base | Representation |
---|---|
bin | 1000010010111000111100… |
… | …01010010011010011011101 |
3 | 2101120211210211102012211111 |
4 | 10021130132022103103131 |
5 | 4342331020410414401 |
6 | 102443523434422021 |
7 | 3561612510520141 |
oct | 411343612232335 |
9 | 71524724365744 |
10 | 18241232123101 |
11 | 58a3076a92849 |
12 | 2067333891911 |
13 | a241aa481a10 |
14 | 470c4794d221 |
15 | 21976a097e51 |
hex | 10971e2934dd |
18241232123101 has 8 divisors (see below), whose sum is σ = 19644492593880. Its totient is φ = 16837984333632.
The previous prime is 18241232123033. The next prime is 18241232123129. The reversal of 18241232123101 is 10132123214281.
It can be written as a sum of positive squares in 4 ways, for example, as 1488951491076 + 16752280632025 = 1220226^2 + 4092955^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 18241232123101 - 225 = 18241198568669 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18241232123171) 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, 70546 + ... + 6040483.
It is an arithmetic number, because the mean of its divisors is an integer number (2455561574235).
Almost surely, 218241232123101 is an apocalyptic number.
It is an amenable number.
18241232123101 is a deficient number, since it is larger than the sum of its proper divisors (1403260470779).
18241232123101 is a wasteful number, since it uses less digits than its factorization.
18241232123101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6340655.
The product of its (nonzero) digits is 4608, while the sum is 31.
Adding to 18241232123101 its reverse (10132123214281), we get a palindrome (28373355337382).
The spelling of 18241232123101 in words is "eighteen trillion, two hundred forty-one billion, two hundred thirty-two million, one hundred twenty-three thousand, one hundred one".
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