Base | Representation |
---|---|
bin | 110101111010… |
… | …000110101111 |
3 | 222120221221202 |
4 | 311322012233 |
5 | 12104203011 |
6 | 1222520115 |
7 | 231055043 |
oct | 65720657 |
9 | 28527852 |
10 | 14131631 |
11 | 7a82338 |
12 | 489603b |
13 | 2c0a317 |
14 | 1c3c023 |
15 | 139223b |
hex | d7a1af |
14131631 has 4 divisors (see below), whose sum is σ = 14432352. Its totient is φ = 13830912.
The previous prime is 14131603. The next prime is 14131633. The reversal of 14131631 is 13613141.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13613141 = 17 ⋅800773.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-14131631 is a prime.
It is a super-2 number, since 2×141316312 = 399405989440322, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (14131633) 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, 150290 + ... + 150383.
It is an arithmetic number, because the mean of its divisors is an integer number (3608088).
Almost surely, 214131631 is an apocalyptic number.
14131631 is a deficient number, since it is larger than the sum of its proper divisors (300721).
14131631 is an equidigital number, since it uses as much as digits as its factorization.
14131631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 300720.
The product of its digits is 216, while the sum is 20.
The square root of 14131631 is about 3759.2061662005. The cubic root of 14131631 is about 241.7672271681.
Adding to 14131631 its reverse (13613141), we get a palindrome (27744772).
The spelling of 14131631 in words is "fourteen million, one hundred thirty-one thousand, six hundred thirty-one".
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