Base | Representation |
---|---|
bin | 111101000000001010… |
… | …1110010001101011011 |
3 | 110112010202202221200122 |
4 | 1322000111302031123 |
5 | 4121243031310321 |
6 | 140103120023455 |
7 | 12315233303522 |
oct | 1720025621533 |
9 | 415122687618 |
10 | 131002213211 |
11 | 50615374811 |
12 | 21480461b8b |
13 | c4797081bc |
14 | 64aa6314b9 |
15 | 361ad308ab |
hex | 1e8057235b |
131002213211 has 8 divisors (see below), whose sum is σ = 131718737904. Its totient is φ = 130287628800.
The previous prime is 131002213189. The next prime is 131002213229. The reversal of 131002213211 is 112312200131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131002213211 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 131002213211.
It is not an unprimeable number, because it can be changed into a prime (131002213241) 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, 349565 + ... + 619838.
It is an arithmetic number, because the mean of its divisors is an integer number (16464842238).
Almost surely, 2131002213211 is an apocalyptic number.
131002213211 is a deficient number, since it is larger than the sum of its proper divisors (716524693).
131002213211 is an equidigital number, since it uses as much as digits as its factorization.
131002213211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 970141.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 131002213211 its reverse (112312200131), we get a palindrome (243314413342).
The spelling of 131002213211 in words is "one hundred thirty-one billion, two million, two hundred thirteen thousand, two hundred eleven".
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