Base | Representation |
---|---|
bin | 111101010011001101… |
… | …0100110100000110111 |
3 | 110120210021210012110112 |
4 | 1322212122212200313 |
5 | 4124100044311411 |
6 | 140250335413235 |
7 | 12340121060513 |
oct | 1724632464067 |
9 | 416707705415 |
10 | 131641010231 |
11 | 50912a11435 |
12 | 2161a38421b |
13 | c54bb68bc3 |
14 | 652b3d7143 |
15 | 3656e63b8b |
hex | 1ea66a6837 |
131641010231 has 4 divisors (see below), whose sum is σ = 135887494464. Its totient is φ = 127394526000.
The previous prime is 131641010213. The next prime is 131641010243. The reversal of 131641010231 is 132010146131.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132010146131 = 1987 ⋅66436913.
It is a cyclic number.
It is not a de Polignac number, because 131641010231 - 226 = 131573901367 is a prime.
It is a super-2 number, since 2×1316410102312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131641010197 and 131641010206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131641010131) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123242070 + ... + 2123242131.
It is an arithmetic number, because the mean of its divisors is an integer number (33971873616).
Almost surely, 2131641010231 is an apocalyptic number.
131641010231 is a deficient number, since it is larger than the sum of its proper divisors (4246484233).
131641010231 is an equidigital number, since it uses as much as digits as its factorization.
131641010231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4246484232.
The product of its (nonzero) digits is 432, while the sum is 23.
Adding to 131641010231 its reverse (132010146131), we get a palindrome (263651156362).
The spelling of 131641010231 in words is "one hundred thirty-one billion, six hundred forty-one million, ten thousand, two hundred thirty-one".
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