Base | Representation |
---|---|
bin | 110100110110… |
… | …100010100001 |
3 | 222001220022202 |
4 | 310312202201 |
5 | 12021324011 |
6 | 1212542545 |
7 | 225523145 |
oct | 64664241 |
9 | 28056282 |
10 | 13854881 |
11 | 7903417 |
12 | 4781a55 |
13 | 2b41371 |
14 | 1ba9225 |
15 | 133a23b |
hex | d368a1 |
13854881 has 8 divisors (see below), whose sum is σ = 14806440. Its totient is φ = 12918528.
The previous prime is 13854871. The next prime is 13854899. The reversal of 13854881 is 18845831.
It can be written as a sum of positive squares in 4 ways, for example, as 8904256 + 4950625 = 2984^2 + 2225^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13854881 - 222 = 9660577 is a prime.
It is a super-2 number, since 2×138548812 = 383915455048322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13854851) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886 + ... + 5591.
It is an arithmetic number, because the mean of its divisors is an integer number (1850805).
Almost surely, 213854881 is an apocalyptic number.
It is an amenable number.
13854881 is a deficient number, since it is larger than the sum of its proper divisors (951559).
13854881 is a wasteful number, since it uses less digits than its factorization.
13854881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7603.
The product of its digits is 30720, while the sum is 38.
The square root of 13854881 is about 3722.2145290136. The cubic root of 13854881 is about 240.1785765845.
The spelling of 13854881 in words is "thirteen million, eight hundred fifty-four thousand, eight hundred eighty-one".
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