Base | Representation |
---|---|
bin | 111101000110101110… |
… | …0001111100011110101 |
3 | 110112201002100210100012 |
4 | 1322031130033203311 |
5 | 4122220313310401 |
6 | 140141011030005 |
7 | 12323542453010 |
oct | 1721534174365 |
9 | 415632323305 |
10 | 131222010101 |
11 | 50718449436 |
12 | 21521b9b305 |
13 | c4b3104330 |
14 | 64cb8c8377 |
15 | 363029a8bb |
hex | 1e8d70f8f5 |
131222010101 has 16 divisors (see below), whose sum is σ = 168525928704. Its totient is φ = 99309919104.
The previous prime is 131222010097. The next prime is 131222010119. The reversal of 131222010101 is 101010222131.
It is a cyclic number.
It is not a de Polignac number, because 131222010101 - 22 = 131222010097 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131222010131) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31345736 + ... + 31349921.
It is an arithmetic number, because the mean of its divisors is an integer number (10532870544).
Almost surely, 2131222010101 is an apocalyptic number.
It is an amenable number.
131222010101 is a deficient number, since it is larger than the sum of its proper divisors (37303918603).
131222010101 is a wasteful number, since it uses less digits than its factorization.
131222010101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62695700.
The product of its (nonzero) digits is 24, while the sum is 14.
Adding to 131222010101 its reverse (101010222131), we get a palindrome (232232232232).
The spelling of 131222010101 in words is "one hundred thirty-one billion, two hundred twenty-two million, ten thousand, one hundred one".
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