Search a number
-
+
202044440441 = 281719019361
BaseRepresentation
bin1011110000101011001…
…0010111111101111001
3201022111211021000112202
42330022302113331321
511302241334043231
6232452401315545
720411564256524
oct2741262277571
9638454230482
10202044440441
11787609015a8
12331a8335bb5
131608ba5624c
149ac9827bbb
1553c7bb45cb
hex2f0ac97f79

202044440441 has 4 divisors (see below), whose sum is σ = 202763460084. Its totient is φ = 201325420800.

The previous prime is 202044440413. The next prime is 202044440443. The reversal of 202044440441 is 144044440202.

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 44340146041 + 157704294400 = 210571^2 + 397120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-202044440441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202044440443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359509400 + ... + 359509961.

It is an arithmetic number, because the mean of its divisors is an integer number (50690865021).

Almost surely, 2202044440441 is an apocalyptic number.

It is an amenable number.

202044440441 is a deficient number, since it is larger than the sum of its proper divisors (719019643).

202044440441 is an equidigital number, since it uses as much as digits as its factorization.

202044440441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719019642.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 202044440441 its reverse (144044440202), we get a palindrome (346088880643).

The spelling of 202044440441 in words is "two hundred two billion, forty-four million, four hundred forty thousand, four hundred forty-one".

Divisors: 1 281 719019361 202044440441