Base | Representation |
---|---|
bin | 11101110010111010101010… |
… | …100101101111010111011101 |
3 | 122011222112010012002212012000 |
4 | 131302322222211233113131 |
5 | 114133444124420033041 |
6 | 1142412001425032513 |
7 | 36413331464332410 |
oct | 3562725245572735 |
9 | 564875105085160 |
10 | 131042314221021 |
11 | 38832808125715 |
12 | 12844a65a85739 |
13 | 58173111b7318 |
14 | 24506a62a3b77 |
15 | 1023aa0a76bb6 |
hex | 772eaa96f5dd |
131042314221021 has 64 divisors (see below), whose sum is σ = 225514554954240. Its totient is φ = 73651555998720.
The previous prime is 131042314220977. The next prime is 131042314221041. The reversal of 131042314221021 is 120122413240131.
131042314221021 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 4 + 231 + 422 + 1 + 0 + 2 + 1 = 666.
It is not a de Polignac number, because 131042314221021 - 219 = 131042313696733 is a prime.
It is a super-2 number, since 2×1310423142210212 (a number of 29 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131042314221041) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 433027861 + ... + 433330373.
It is an arithmetic number, because the mean of its divisors is an integer number (3523664921160).
Almost surely, 2131042314221021 is an apocalyptic number.
It is an amenable number.
131042314221021 is a deficient number, since it is larger than the sum of its proper divisors (94472240733219).
131042314221021 is a wasteful number, since it uses less digits than its factorization.
131042314221021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 340163 (or 340157 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
Adding to 131042314221021 its reverse (120122413240131), we get a palindrome (251164727461152).
The spelling of 131042314221021 in words is "one hundred thirty-one trillion, forty-two billion, three hundred fourteen million, two hundred twenty-one thousand, twenty-one".
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