Base | Representation |
---|---|
bin | 111000110001… |
… | …010011000001 |
3 | 1001000002020122 |
4 | 320301103001 |
5 | 12302210420 |
6 | 1250550025 |
7 | 240331466 |
oct | 70612301 |
9 | 31002218 |
10 | 14881985 |
11 | 8445068 |
12 | 4b98315 |
13 | 3110a11 |
14 | 1d9566d |
15 | 148e725 |
hex | e314c1 |
14881985 has 4 divisors (see below), whose sum is σ = 17858388. Its totient is φ = 11905584.
The previous prime is 14881981. The next prime is 14882003. The reversal of 14881985 is 58918841.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58918841 = 151 ⋅390191.
It can be written as a sum of positive squares in 2 ways, for example, as 3806401 + 11075584 = 1951^2 + 3328^2 .
It is a cyclic number.
It is not a de Polignac number, because 14881985 - 22 = 14881981 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (14881981) 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, 1488194 + ... + 1488203.
It is an arithmetic number, because the mean of its divisors is an integer number (4464597).
Almost surely, 214881985 is an apocalyptic number.
It is an amenable number.
14881985 is a deficient number, since it is larger than the sum of its proper divisors (2976403).
14881985 is an equidigital number, since it uses as much as digits as its factorization.
14881985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2976402.
The product of its digits is 92160, while the sum is 44.
The square root of 14881985 is about 3857.7175894562. The cubic root of 14881985 is about 245.9727259515.
The spelling of 14881985 in words is "fourteen million, eight hundred eighty-one thousand, nine hundred eighty-five".
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