Base | Representation |
---|---|
bin | 110101000100… |
… | …100011001111 |
3 | 222011211001022 |
4 | 311010203033 |
5 | 12030143041 |
6 | 1214104355 |
7 | 226152362 |
oct | 65044317 |
9 | 28154038 |
10 | 13912271 |
11 | 794254a |
12 | 47ab0bb |
13 | 2b61519 |
14 | 1bc20d9 |
15 | 134c24b |
hex | d448cf |
13912271 has 4 divisors (see below), whose sum is σ = 13952712. Its totient is φ = 13871832.
The previous prime is 13912253. The next prime is 13912277. The reversal of 13912271 is 17221931.
13912271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17221931 = 571 ⋅30161.
It is a cyclic number.
It is not a de Polignac number, because 13912271 - 218 = 13650127 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 13912271.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13912277) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19700 + ... + 20393.
It is an arithmetic number, because the mean of its divisors is an integer number (3488178).
Almost surely, 213912271 is an apocalyptic number.
13912271 is a deficient number, since it is larger than the sum of its proper divisors (40441).
13912271 is an equidigital number, since it uses as much as digits as its factorization.
13912271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40440.
The product of its digits is 756, while the sum is 26.
The square root of 13912271 is about 3729.9156826931. The cubic root of 13912271 is about 240.5097441170.
The spelling of 13912271 in words is "thirteen million, nine hundred twelve thousand, two hundred seventy-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •