Base | Representation |
---|---|
bin | 11101110010011100100101… |
… | …101101011110111011000101 |
3 | 122011212102202120001001010211 |
4 | 131302130211231132323011 |
5 | 114132432010122010041 |
6 | 1142345101122115421 |
7 | 36411106300040323 |
oct | 3562344555367305 |
9 | 564772676031124 |
10 | 131010020110021 |
11 | 38820045a23088 |
12 | 1283a7527abb71 |
13 | 581426575c6c0 |
14 | 244ccc12c0d13 |
15 | 1022d10841481 |
hex | 772725b5eec5 |
131010020110021 has 8 divisors (see below), whose sum is σ = 141087916386144. Its totient is φ = 120932152751280.
The previous prime is 131010020109989. The next prime is 131010020110031. The reversal of 131010020110021 is 120011020010131.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131010020110021 - 25 = 131010020109989 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (13).
It is a junction number, because it is equal to n+sod(n) for n = 131010020109983 and 131010020110010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131010020110031) 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, 2683590 + ... + 16407976.
It is an arithmetic number, because the mean of its divisors is an integer number (17635989548268).
Almost surely, 2131010020110021 is an apocalyptic number.
It is an amenable number.
131010020110021 is a deficient number, since it is larger than the sum of its proper divisors (10077896276123).
131010020110021 is a wasteful number, since it uses less digits than its factorization.
131010020110021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14458691.
The product of its (nonzero) digits is 12, while the sum is 13.
Adding to 131010020110021 its reverse (120011020010131), we get a palindrome (251021040120152).
The spelling of 131010020110021 in words is "one hundred thirty-one trillion, ten billion, twenty million, one hundred ten thousand, twenty-one".
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