Base | Representation |
---|---|
bin | 11101110111000110111111… |
… | …000010001110100111011010 |
3 | 122020000001202210000222221200 |
4 | 131313012333002032213122 |
5 | 114203204200012322302 |
6 | 1143152210112415030 |
7 | 36443211144366633 |
oct | 3567067702164732 |
9 | 566001683028850 |
10 | 131330420042202 |
11 | 38933a11378367 |
12 | 1289086bb47476 |
13 | 5838536a826a4 |
14 | 24605d789288a |
15 | 102b313e1981c |
hex | 7771bf08e9da |
131330420042202 has 12 divisors (see below), whose sum is σ = 284549243424810. Its totient is φ = 43776806680728.
The previous prime is 131330420042147. The next prime is 131330420042209. The reversal of 131330420042202 is 202240024033131.
131330420042202 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 30 + 4 + 200 + 422 + 0 + 2 = 666.
It can be written as a sum of positive squares in only one way, i.e., 65936657379321 + 65393762662881 = 8120139^2 + 8086641^2 .
It is a super-4 number, since 4×1313304200422024 (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (131330420042209) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3648067223377 + ... + 3648067223412.
Almost surely, 2131330420042202 is an apocalyptic number.
131330420042202 is an abundant number, since it is smaller than the sum of its proper divisors (153218823382608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131330420042202 is a wasteful number, since it uses less digits than its factorization.
131330420042202 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7296134446797 (or 7296134446794 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 27.
Adding to 131330420042202 its reverse (202240024033131), we get a palindrome (333570444075333).
The spelling of 131330420042202 in words is "one hundred thirty-one trillion, three hundred thirty billion, four hundred twenty million, forty-two thousand, two hundred two".
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