Base | Representation |
---|---|
bin | 110101100001… |
… | …100110110001 |
3 | 222101212022002 |
4 | 311201212301 |
5 | 12043000111 |
6 | 1220423345 |
7 | 230156345 |
oct | 65414661 |
9 | 28355262 |
10 | 14031281 |
11 | 7a13a00 |
12 | 4847b55 |
13 | 2ba3744 |
14 | 1c13625 |
15 | 137263b |
hex | d619b1 |
14031281 has 12 divisors (see below), whose sum is σ = 15683892. Its totient is φ = 12540000.
The previous prime is 14031217. The next prime is 14031299. The reversal of 14031281 is 18213041.
14031281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 774400 + 13256881 = 880^2 + 3641^2 .
It is not a de Polignac number, because 14031281 - 26 = 14031217 is a prime.
It is a super-2 number, since 2×140312812 = 393753693001922, which contains 22 as substring.
It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (14031211) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6431 + ... + 8331.
It is an arithmetic number, because the mean of its divisors is an integer number (1306991).
Almost surely, 214031281 is an apocalyptic number.
14031281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
14031281 is a deficient number, since it is larger than the sum of its proper divisors (1652611).
14031281 is a wasteful number, since it uses less digits than its factorization.
14031281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1984 (or 1973 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 20.
The square root of 14031281 is about 3745.8351538742. The cubic root of 14031281 is about 241.1935968440.
The spelling of 14031281 in words is "fourteen million, thirty-one thousand, two hundred eighty-one".
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