Base | Representation |
---|---|
bin | 110100011011… |
… | …101111110101 |
3 | 221212022210022 |
4 | 310123233311 |
5 | 12004321031 |
6 | 1210334525 |
7 | 224555204 |
oct | 64335765 |
9 | 27768708 |
10 | 13745141 |
11 | 7838a23 |
12 | 472a445 |
13 | 2b03427 |
14 | 1b7b23b |
15 | 131797b |
hex | d1bbf5 |
13745141 has 2 divisors, whose sum is σ = 13745142. Its totient is φ = 13745140.
The previous prime is 13745107. The next prime is 13745143. The reversal of 13745141 is 14154731.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 7263025 + 6482116 = 2695^2 + 2546^2 .
It is an emirp because it is prime and its reverse (14154731) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13745141 is a prime.
It is a super-2 number, since 2×137451412 = 377857802219762, which contains 22 as substring.
Together with 13745143, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 13745141.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13745143) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6872570 + 6872571.
It is an arithmetic number, because the mean of its divisors is an integer number (6872571).
Almost surely, 213745141 is an apocalyptic number.
It is an amenable number.
13745141 is a deficient number, since it is larger than the sum of its proper divisors (1).
13745141 is an equidigital number, since it uses as much as digits as its factorization.
13745141 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1680, while the sum is 26.
The square root of 13745141 is about 3707.4439982284. The cubic root of 13745141 is about 239.5427695173.
Adding to 13745141 its reverse (14154731), we get a palindrome (27899872).
The spelling of 13745141 in words is "thirteen million, seven hundred forty-five thousand, one hundred forty-one".
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