Base | Representation |
---|---|
bin | 1111100111111… |
… | …10011000000111 |
3 | 100010121210212021 |
4 | 13303332120013 |
5 | 232023042401 |
6 | 21001104011 |
7 | 3151015504 |
oct | 763763007 |
9 | 303553767 |
10 | 131065351 |
11 | 67a8a37a |
12 | 37a88007 |
13 | 211cc681 |
14 | 1359a4ab |
15 | b78e2a1 |
hex | 7cfe607 |
131065351 has 4 divisors (see below), whose sum is σ = 131653312. Its totient is φ = 130477392.
The previous prime is 131065331. The next prime is 131065357. The reversal of 131065351 is 153560131.
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 131065351 - 29 = 131064839 is a prime.
It is a Duffinian number.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131065357) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 293646 + ... + 294091.
It is an arithmetic number, because the mean of its divisors is an integer number (32913328).
Almost surely, 2131065351 is an apocalyptic number.
131065351 is a deficient number, since it is larger than the sum of its proper divisors (587961).
131065351 is an equidigital number, since it uses as much as digits as its factorization.
131065351 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 587960.
The product of its (nonzero) digits is 1350, while the sum is 25.
The square root of 131065351 is about 11448.3776579915. The cubic root of 131065351 is about 507.9597471050.
The spelling of 131065351 in words is "one hundred thirty-one million, sixty-five thousand, three hundred fifty-one".
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