Search a number
-
+
1244320441 = 713471072719
BaseRepresentation
bin100101000101010…
…1101001010111001
310012201102000202021
41022022231022321
510022021223231
6323250034441
742556356250
oct11212551271
93181360667
101244320441
11589428401
122a8878a21
1316aa416b0
14bb389797
1574392811
hex4a2ad2b9

1244320441 has 32 divisors (see below), whose sum is σ = 1579253760. Its totient is φ = 954213696.

The previous prime is 1244320421. The next prime is 1244320453. The reversal of 1244320441 is 1440234421.

It is a cyclic number.

It is not a de Polignac number, because 1244320441 - 25 = 1244320409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244320421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456280 + ... + 458998.

It is an arithmetic number, because the mean of its divisors is an integer number (49351680).

Almost surely, 21244320441 is an apocalyptic number.

It is an amenable number.

1244320441 is a deficient number, since it is larger than the sum of its proper divisors (334933319).

1244320441 is a wasteful number, since it uses less digits than its factorization.

1244320441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1244320441 is about 35274.9265201219. The cubic root of 1244320441 is about 1075.5833692505.

Adding to 1244320441 its reverse (1440234421), we get a palindrome (2684554862).

The spelling of 1244320441 in words is "one billion, two hundred forty-four million, three hundred twenty thousand, four hundred forty-one".

Divisors: 1 7 13 47 91 107 329 611 749 1391 2719 4277 5029 9737 19033 35203 35347 65377 127793 247429 290933 457639 894551 1661309 2036531 3782129 11629163 13673851 26474903 95716957 177760063 1244320441