Base | Representation |
---|---|
bin | 11101110101100010000010… |
… | …100100100000000111011001 |
3 | 122012121200222222202012211202 |
4 | 131311202002210200013121 |
5 | 114144420210021343301 |
6 | 1143030322524403545 |
7 | 36432323160414221 |
oct | 3565420244400731 |
9 | 565550888665752 |
10 | 131222031434201 |
11 | 388a1a5087a984 |
12 | 128738609a65b5 |
13 | 582b252379896 |
14 | 24592746cb081 |
15 | 10285bd52166b |
hex | 7758829201d9 |
131222031434201 has 8 divisors (see below), whose sum is σ = 131231048176200. Its totient is φ = 131213015062272.
The previous prime is 131222031434141. The next prime is 131222031434237. The reversal of 131222031434201 is 102434130222131.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 25213694712976 + 106008336721225 = 5021324^2 + 10296035^2 .
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-131222031434201 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131222031434701) 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, 1111116311 + ... + 1111234403.
It is an arithmetic number, because the mean of its divisors is an integer number (16403881022025).
Almost surely, 2131222031434201 is an apocalyptic number.
It is an amenable number.
131222031434201 is a deficient number, since it is larger than the sum of its proper divisors (9016741999).
131222031434201 is a wasteful number, since it uses less digits than its factorization.
131222031434201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 185035.
The product of its (nonzero) digits is 6912, while the sum is 29.
Adding to 131222031434201 its reverse (102434130222131), we get a palindrome (233656161656332).
The spelling of 131222031434201 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, thirty-one million, four hundred thirty-four thousand, two hundred one".
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