Base | Representation |
---|---|
bin | 1111100111100… |
… | …10011000111110 |
3 | 100010112022111212 |
4 | 13303302120332 |
5 | 232020010004 |
6 | 21000044422 |
7 | 3150422405 |
oct | 763623076 |
9 | 303468455 |
10 | 131016254 |
11 | 67a564a6 |
12 | 37a63712 |
13 | 211b3215 |
14 | 1358663c |
15 | b77e96e |
hex | 7cf263e |
131016254 has 4 divisors (see below), whose sum is σ = 196524384. Its totient is φ = 65508126.
The previous prime is 131016253. The next prime is 131016269. The reversal of 131016254 is 452610131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452610131 = 43 ⋅10525817.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131016253) 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 as a sum of consecutive naturals, namely, 32754062 + ... + 32754065.
It is an arithmetic number, because the mean of its divisors is an integer number (49131096).
Almost surely, 2131016254 is an apocalyptic number.
131016254 is a deficient number, since it is larger than the sum of its proper divisors (65508130).
131016254 is an equidigital number, since it uses as much as digits as its factorization.
131016254 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65508129.
The product of its (nonzero) digits is 720, while the sum is 23.
The square root of 131016254 is about 11446.2331795224. The cubic root of 131016254 is about 507.8963120470.
Adding to 131016254 its reverse (452610131), we get a palindrome (583626385).
The spelling of 131016254 in words is "one hundred thirty-one million, sixteen thousand, two hundred fifty-four".
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