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10443121 = 131137109
BaseRepresentation
bin100111110101…
…100101110001
3201122120021021
4213311211301
510133134441
61011455441
7154523263
oct47654561
921576237
1010443121
115993087
1235b7581
132218480
14155bb33
15db43d1
hex9f5971

10443121 has 8 divisors (see below), whose sum is σ = 11347560. Its totient is φ = 9553152.

The previous prime is 10443119. The next prime is 10443133. The reversal of 10443121 is 12134401.

It can be written as a sum of positive squares in 4 ways, for example, as 1079521 + 9363600 = 1039^2 + 3060^2 .

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 10443121 - 21 = 10443119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10443095 and 10443104.

It is not an unprimeable number, because it can be changed into a prime (10443101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2086 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (1418445).

Almost surely, 210443121 is an apocalyptic number.

It is an amenable number.

10443121 is a deficient number, since it is larger than the sum of its proper divisors (904439).

10443121 is a wasteful number, since it uses less digits than its factorization.

10443121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7235.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 10443121 is about 3231.5818108165. The cubic root of 10443121 is about 218.5798398070.

Adding to 10443121 its reverse (12134401), we get a palindrome (22577522).

The spelling of 10443121 in words is "ten million, four hundred forty-three thousand, one hundred twenty-one".

Divisors: 1 13 113 1469 7109 92417 803317 10443121