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1330144441 = 2357832367
BaseRepresentation
bin100111101001000…
…0110010010111001
310102200220100010221
41033102012102321
510211004110231
6335553340041
744651020063
oct11722062271
93380810127
101330144441
1162291722a
12311567621
13182760922
14c892a733
157bb96d11
hex4f4864b9

1330144441 has 4 divisors (see below), whose sum is σ = 1387976832. Its totient is φ = 1272312052.

The previous prime is 1330144429. The next prime is 1330144451. The reversal of 1330144441 is 1444410331.

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 1330144441 - 219 = 1329620153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330144451) 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, 28916161 + ... + 28916206.

It is an arithmetic number, because the mean of its divisors is an integer number (346994208).

Almost surely, 21330144441 is an apocalyptic number.

It is an amenable number.

1330144441 is a deficient number, since it is larger than the sum of its proper divisors (57832391).

1330144441 is an equidigital number, since it uses as much as digits as its factorization.

1330144441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57832390.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1330144441 is about 36471.1453206504. The cubic root of 1330144441 is about 1099.7642582971.

Adding to 1330144441 its reverse (1444410331), we get a palindrome (2774554772).

The spelling of 1330144441 in words is "one billion, three hundred thirty million, one hundred forty-four thousand, four hundred forty-one".

Divisors: 1 23 57832367 1330144441