Base | Representation |
---|---|
bin | 100111000100… |
… | …110000001001 |
3 | 201021101212101 |
4 | 213010300021 |
5 | 10110234311 |
6 | 1003313401 |
7 | 153031132 |
oct | 47046011 |
9 | 21241771 |
10 | 10243081 |
11 | 5866862 |
12 | 351b861 |
13 | 21783c4 |
14 | 1508c89 |
15 | d74ec1 |
hex | 9c4c09 |
10243081 has 4 divisors (see below), whose sum is σ = 10251472. Its totient is φ = 10234692.
The previous prime is 10243067. The next prime is 10243087. The reversal of 10243081 is 18034201.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18034201 = 29 ⋅621869.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-10243081 is a prime.
It is a super-2 number, since 2×102430812 = 209841416745122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (10243087) 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, 1971 + ... + 4936.
It is an arithmetic number, because the mean of its divisors is an integer number (2562868).
Almost surely, 210243081 is an apocalyptic number.
It is an amenable number.
10243081 is a deficient number, since it is larger than the sum of its proper divisors (8391).
10243081 is an equidigital number, since it uses as much as digits as its factorization.
10243081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8390.
The product of its (nonzero) digits is 192, while the sum is 19.
The square root of 10243081 is about 3200.4813700442. The cubic root of 10243081 is about 217.1751861038.
Adding to 10243081 its reverse (18034201), we get a palindrome (28277282).
The spelling of 10243081 in words is "ten million, two hundred forty-three thousand, eighty-one".
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