Base | Representation |
---|---|
bin | 1111101010101… |
… | …11111010101011 |
3 | 100011022102221211 |
4 | 13311113322223 |
5 | 232121311412 |
6 | 21013013551 |
7 | 3154103662 |
oct | 765277253 |
9 | 304272854 |
10 | 131432107 |
11 | 6820a984 |
12 | 380242b7 |
13 | 212ca5a1 |
14 | 13653dd9 |
15 | b812ca7 |
hex | 7d57eab |
131432107 has 2 divisors, whose sum is σ = 131432108. Its totient is φ = 131432106.
The previous prime is 131432087. The next prime is 131432129. The reversal of 131432107 is 701234131.
It is an a-pointer prime, because the next prime (131432129) can be obtained adding 131432107 to its sum of digits (22).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 131432107 - 223 = 123043499 is a prime.
It is not a weakly prime, because it can be changed into another prime (131432167) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65716053 + 65716054.
It is an arithmetic number, because the mean of its divisors is an integer number (65716054).
Almost surely, 2131432107 is an apocalyptic number.
131432107 is a deficient number, since it is larger than the sum of its proper divisors (1).
131432107 is an equidigital number, since it uses as much as digits as its factorization.
131432107 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 504, while the sum is 22.
The square root of 131432107 is about 11464.3842835104. The cubic root of 131432107 is about 508.4331083794.
Adding to 131432107 its reverse (701234131), we get a palindrome (832666238).
The spelling of 131432107 in words is "one hundred thirty-one million, four hundred thirty-two thousand, one hundred seven".
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