Base | Representation |
---|---|
bin | 111101000110000100… |
… | …1111011110000110001 |
3 | 110112122120202120101202 |
4 | 1322030021323300301 |
5 | 4122144302330301 |
6 | 140134520340545 |
7 | 12323161165415 |
oct | 1721411736061 |
9 | 415576676352 |
10 | 131200433201 |
11 | 50707251392 |
12 | 21516914755 |
13 | c4ab7bb236 |
14 | 64c8aacd45 |
15 | 362d43766b |
hex | 1e8c27bc31 |
131200433201 has 4 divisors (see below), whose sum is σ = 135724586100. Its totient is φ = 126676280304.
The previous prime is 131200433167. The next prime is 131200433261. The reversal of 131200433201 is 102334002131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102334002131 = 40127 ⋅2550253.
It can be written as a sum of positive squares in 2 ways, for example, as 96845440000 + 34354993201 = 311200^2 + 185351^2 .
It is a cyclic number.
It is not a de Polignac number, because 131200433201 - 214 = 131200416817 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131200433261) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2262076406 + ... + 2262076463.
It is an arithmetic number, because the mean of its divisors is an integer number (33931146525).
Almost surely, 2131200433201 is an apocalyptic number.
It is an amenable number.
131200433201 is a deficient number, since it is larger than the sum of its proper divisors (4524152899).
131200433201 is an equidigital number, since it uses as much as digits as its factorization.
131200433201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4524152898.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 131200433201 its reverse (102334002131), we get a palindrome (233534435332).
The spelling of 131200433201 in words is "one hundred thirty-one billion, two hundred million, four hundred thirty-three thousand, two hundred one".
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