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10221441 = 33407147
BaseRepresentation
bin100110111111…
…011110000001
3201020022011220
4212333132001
510104041231
61003025253
7152611056
oct46773601
921208156
1010221441
11585157a
12350b229
13216b5b9
14150102d
15d6d896
hex9bf781

10221441 has 4 divisors (see below), whose sum is σ = 13628592. Its totient is φ = 6814292.

The previous prime is 10221397. The next prime is 10221443. The reversal of 10221441 is 14412201.

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.

It is a cyclic number.

It is not a de Polignac number, because 10221441 - 26 = 10221377 is a prime.

It is a super-2 number, since 2×102214412 = 208955712232962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10221441.

It is not an unprimeable number, because it can be changed into a prime (10221443) 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, 1703571 + ... + 1703576.

It is an arithmetic number, because the mean of its divisors is an integer number (3407148).

Almost surely, 210221441 is an apocalyptic number.

It is an amenable number.

10221441 is a deficient number, since it is larger than the sum of its proper divisors (3407151).

10221441 is an equidigital number, since it uses as much as digits as its factorization.

10221441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407150.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 10221441 is about 3197.0988411371. The cubic root of 10221441 is about 217.0221402088.

Adding to 10221441 its reverse (14412201), we get a palindrome (24633642).

The spelling of 10221441 in words is "ten million, two hundred twenty-one thousand, four hundred forty-one".

Divisors: 1 3 3407147 10221441