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1020223441 = 1109919949
BaseRepresentation
bin111100110011110…
…101111111010001
32122002201201110101
4330303311333101
54042134122231
6245122532401
734165520236
oct7463657721
92562651411
101020223441
11483986a76
12245807101
1313349b213
14996d378d
155e878661
hex3ccf5fd1

1020223441 has 4 divisors (see below), whose sum is σ = 1021144500. Its totient is φ = 1019302384.

The previous prime is 1020223387. The next prime is 1020223453. The reversal of 1020223441 is 1443220201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 213890625 + 806332816 = 14625^2 + 28396^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020223441 - 213 = 1020215249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020223471) 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, 458866 + ... + 461083.

It is an arithmetic number, because the mean of its divisors is an integer number (255286125).

Almost surely, 21020223441 is an apocalyptic number.

It is an amenable number.

1020223441 is a deficient number, since it is larger than the sum of its proper divisors (921059).

1020223441 is an equidigital number, since it uses as much as digits as its factorization.

1020223441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921058.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1020223441 is about 31940.9367583357. The cubic root of 1020223441 is about 1006.6962077180.

Adding to 1020223441 its reverse (1443220201), we get a palindrome (2463443642).

The spelling of 1020223441 in words is "one billion, twenty million, two hundred twenty-three thousand, four hundred forty-one".

Divisors: 1 1109 919949 1020223441