Base | Representation |
---|---|
bin | 1111101010101… |
… | …00111101101011 |
3 | 100011021211100211 |
4 | 13311110331223 |
5 | 232120420021 |
6 | 21012441551 |
7 | 3154023502 |
oct | 765247553 |
9 | 304254324 |
10 | 131420011 |
11 | 68201888 |
12 | 380192b7 |
13 | 212c4c28 |
14 | 1364d839 |
15 | b80e3e1 |
hex | 7d54f6b |
131420011 has 4 divisors (see below), whose sum is σ = 131443552. Its totient is φ = 131396472.
The previous prime is 131419991. The next prime is 131420027. The reversal of 131420011 is 110024131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 131420011 - 29 = 131419499 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131419973 and 131420000.
It is not an unprimeable number, because it can be changed into a prime (131420071) 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, 1885 + ... + 16321.
It is an arithmetic number, because the mean of its divisors is an integer number (32860888).
Almost surely, 2131420011 is an apocalyptic number.
131420011 is a deficient number, since it is larger than the sum of its proper divisors (23541).
131420011 is an equidigital number, since it uses as much as digits as its factorization.
131420011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23540.
The product of its (nonzero) digits is 24, while the sum is 13.
The square root of 131420011 is about 11463.8567245059. The cubic root of 131420011 is about 508.4175104769.
Adding to 131420011 its reverse (110024131), we get a palindrome (241444142).
The spelling of 131420011 in words is "one hundred thirty-one million, four hundred twenty thousand, eleven".
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