Search a number
BaseRepresentation
bin100101000100110…
…0000000001011001
310012200210222021120
41022021200001121
510021431120231
6323235155453
742553602051
oct11211400131
93180728246
101244004441
11589231a49
122a8745b89
1316a960904
14bb306561
157432dd96
hex4a260059

1244004441 has 4 divisors (see below), whose sum is σ = 1658672592. Its totient is φ = 829336292.

The previous prime is 1244004431. The next prime is 1244004469. The reversal of 1244004441 is 1444004421.

Adding to 1244004441 its reverse (1444004421), we get a palindrome (2688008862).

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1444004421 = 3481334807.

It is a cyclic number.

It is not a de Polignac number, because 1244004441 - 25 = 1244004409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1244004401) 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, 207334071 + ... + 207334076.

It is an arithmetic number, because the mean of its divisors is an integer number (414668148).

Almost surely, 21244004441 is an apocalyptic number.

It is an amenable number.

1244004441 is a deficient number, since it is larger than the sum of its proper divisors (414668151).

1244004441 is an equidigital number, since it uses as much as digits as its factorization.

1244004441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414668150.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1244004441 is about 35270.4471335423. The cubic root of 1244004441 is about 1075.4923120198.

The spelling of 1244004441 in words is "one billion, two hundred forty-four million, four thousand, four hundred forty-one".

Divisors: 1 3 414668147 1244004441