Base | Representation |
---|---|
bin | 111101001101010110… |
… | …0000001011010000101 |
3 | 110120021120112202111122 |
4 | 1322122230001122011 |
5 | 4123144212001440 |
6 | 140215030243325 |
7 | 12332211456320 |
oct | 1723254013205 |
9 | 416246482448 |
10 | 131444250245 |
11 | 50821941780 |
12 | 215844b6545 |
13 | c51a177589 |
14 | 650d2197b7 |
15 | 3644a497b5 |
hex | 1e9ab01685 |
131444250245 has 16 divisors (see below), whose sum is σ = 196654255488. Its totient is φ = 81939272640.
The previous prime is 131444250239. The next prime is 131444250283. The reversal of 131444250245 is 542052444131.
It is a happy number.
It is not a de Polignac number, because 131444250245 - 26 = 131444250181 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (35).
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170706434 + ... + 170707203.
It is an arithmetic number, because the mean of its divisors is an integer number (12290890968).
Almost surely, 2131444250245 is an apocalyptic number.
It is an amenable number.
131444250245 is a deficient number, since it is larger than the sum of its proper divisors (65210005243).
131444250245 is a wasteful number, since it uses less digits than its factorization.
131444250245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 341413660.
The product of its (nonzero) digits is 76800, while the sum is 35.
Adding to 131444250245 its reverse (542052444131), we get a palindrome (673496694376).
The spelling of 131444250245 in words is "one hundred thirty-one billion, four hundred forty-four million, two hundred fifty thousand, two hundred forty-five".
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