Search a number
-
+
1441230445 = 5288246089
BaseRepresentation
bin101010111100111…
…0110111001101101
310201102221002111101
41111321312321231
510422423333240
6355002323101
750500154014
oct12571667155
93642832441
101441230445
1167a59a846
123427b9491
1319c7863a5
14d95a5a7b
15867db39a
hex55e76e6d

1441230445 has 4 divisors (see below), whose sum is σ = 1729476540. Its totient is φ = 1152984352.

The previous prime is 1441230409. The next prime is 1441230449. The reversal of 1441230445 is 5440321441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5440321441 = 42111291931.

It can be written as a sum of positive squares in 2 ways, for example, as 583560649 + 857669796 = 24157^2 + 29286^2 .

It is a cyclic number.

It is not a de Polignac number, because 1441230445 - 225 = 1407676013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441230449) 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, 144123040 + ... + 144123049.

It is an arithmetic number, because the mean of its divisors is an integer number (432369135).

Almost surely, 21441230445 is an apocalyptic number.

It is an amenable number.

1441230445 is a deficient number, since it is larger than the sum of its proper divisors (288246095).

1441230445 is an equidigital number, since it uses as much as digits as its factorization.

1441230445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288246094.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1441230445 is about 37963.5409965930. The cubic root of 1441230445 is about 1129.5647800561.

Adding to 1441230445 its reverse (5440321441), we get a palindrome (6881551886).

The spelling of 1441230445 in words is "one billion, four hundred forty-one million, two hundred thirty thousand, four hundred forty-five".

Divisors: 1 5 288246089 1441230445