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20414441444 = 22193223711821
BaseRepresentation
bin10011000000110010…
…111010011111100100
31221200201101002000212
4103000302322133210
5313302044111234
613213412154552
71321613613665
oct230062723744
957621332025
1020414441444
118726469011
123b58908a58
131c04504567
14db936936c
157e73335ce
hex4c0cba7e4

20414441444 has 24 divisors (see below), whose sum is σ = 35929469688. Its totient is φ = 10148935680.

The previous prime is 20414441431. The next prime is 20414441471. The reversal of 20414441444 is 44414441402.

It can be written as a sum of positive squares in 4 ways, for example, as 906732544 + 19507708900 = 30112^2 + 139670^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20414441444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1721054 + ... + 1732874.

It is an arithmetic number, because the mean of its divisors is an integer number (1497061237).

Almost surely, 220414441444 is an apocalyptic number.

It is an amenable number.

20414441444 is a deficient number, since it is larger than the sum of its proper divisors (15515028244).

20414441444 is a wasteful number, since it uses less digits than its factorization.

20414441444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14255 (or 14253 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 20414441444 its reverse (44414441402), we get a palindrome (64828882846).

The spelling of 20414441444 in words is "twenty billion, four hundred fourteen million, four hundred forty-one thousand, four hundred forty-four".

Divisors: 1 2 4 193 386 772 2237 4474 8948 11821 23642 47284 431741 863482 1726964 2281453 4562906 9125812 26443577 52887154 105774308 5103610361 10207220722 20414441444