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1244441044 = 22731182457
BaseRepresentation
bin100101000101100…
…1010100111010100
310012201122011012001
41022023022213110
510022034103134
6323252405044
742560401000
oct11213124724
93181564161
101244441044
115894aaa80
122a8916784
1316aa84562
14bb3bb700
15743b8414
hex4a2ca9d4

1244441044 has 48 divisors (see below), whose sum is σ = 2770588800. Its totient is φ = 484841280.

The previous prime is 1244440991. The next prime is 1244441047. The reversal of 1244441044 is 4401444421.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244441047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26137 + ... + 56320.

It is an arithmetic number, because the mean of its divisors is an integer number (57720600).

Almost surely, 21244441044 is an apocalyptic number.

1244441044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1244441044 is an abundant number, since it is smaller than the sum of its proper divisors (1526147756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244441044 is a wasteful number, since it uses less digits than its factorization.

1244441044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82493 (or 82477 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 1244441044 is about 35276.6359507252. The cubic root of 1244441044 is about 1075.6181176391.

Adding to 1244441044 its reverse (4401444421), we get a palindrome (5645885465).

The spelling of 1244441044 in words is "one billion, two hundred forty-four million, four hundred forty-one thousand, forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 343 539 686 1078 1372 2156 3773 7546 15092 82457 164914 329828 577199 907027 1154398 1814054 2308796 3628108 4040393 6349189 8080786 12698378 16161572 25396756 28282751 44444323 56565502 88888646 113131004 177777292 311110261 622220522 1244441044