Base | Representation |
---|---|
bin | 111101000110101010… |
… | …0111101010001101001 |
3 | 110112200221202202110011 |
4 | 1322031110331101221 |
5 | 4122214321201301 |
6 | 140140502051521 |
7 | 12323520306541 |
oct | 1721524752151 |
9 | 415627682404 |
10 | 131220100201 |
11 | 50717364503 |
12 | 21521419ba1 |
13 | c4b28b5c08 |
14 | 64cb54c321 |
15 | 363001ea51 |
hex | 1e8d53d469 |
131220100201 has 8 divisors (see below), whose sum is σ = 132237129024. Its totient is φ = 130205825040.
The previous prime is 131220100183. The next prime is 131220100241. The reversal of 131220100201 is 102001022131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131220100201 - 211 = 131220098153 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131220100241) 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, 592690 + ... + 783403.
It is an arithmetic number, because the mean of its divisors is an integer number (16529641128).
Almost surely, 2131220100201 is an apocalyptic number.
It is an amenable number.
131220100201 is a deficient number, since it is larger than the sum of its proper divisors (1017028823).
131220100201 is a wasteful number, since it uses less digits than its factorization.
131220100201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1376831.
The product of its (nonzero) digits is 24, while the sum is 13.
Adding to 131220100201 its reverse (102001022131), we get a palindrome (233221122332).
The spelling of 131220100201 in words is "one hundred thirty-one billion, two hundred twenty million, one hundred thousand, two hundred one".
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