Base | Representation |
---|---|
bin | 110010001001… |
… | …000001010111 |
3 | 220201210101102 |
4 | 302021001113 |
5 | 11331103101 |
6 | 1145420315 |
7 | 216503066 |
oct | 62110127 |
9 | 26653342 |
10 | 13144151 |
11 | 7468439 |
12 | 449a69b |
13 | 2952a07 |
14 | 1a621dd |
15 | 124986b |
hex | c89057 |
13144151 has 4 divisors (see below), whose sum is σ = 13163400. Its totient is φ = 13124904.
The previous prime is 13144141. The next prime is 13144169. The reversal of 13144151 is 15144131.
It is a happy number.
13144151 is digitally balanced in base 3, 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: 15144131 = 193 ⋅78467.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13144151 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13144141) 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, 8561 + ... + 9978.
It is an arithmetic number, because the mean of its divisors is an integer number (3290850).
Almost surely, 213144151 is an apocalyptic number.
13144151 is a deficient number, since it is larger than the sum of its proper divisors (19249).
13144151 is an equidigital number, since it uses as much as digits as its factorization.
13144151 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19248.
The product of its digits is 240, while the sum is 20.
The square root of 13144151 is about 3625.4863122070. The cubic root of 13144151 is about 235.9993715870. Note that the first 3 decimals are identical.
Subtracting from 13144151 its sum of digits (20), we obtain a palindrome (13144131).
Adding to 13144151 its reverse (15144131), we get a palindrome (28288282).
The spelling of 13144151 in words is "thirteen million, one hundred forty-four thousand, one hundred fifty-one".
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