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20104444444 = 227967742519
BaseRepresentation
bin10010101110010100…
…010111101000011100
31220220010001121002111
4102232110113220130
5312133214210234
613122540003404
71311130646440
oct225624275034
956803047074
1020104444444
118587486747
123a90b30564
131b85216396
14d8a112820
157c9eec664
hex4ae517a1c

20104444444 has 24 divisors (see below), whose sum is σ = 40250524160. Its totient is φ = 8607268656.

The previous prime is 20104444429. The next prime is 20104444453. The reversal of 20104444444 is 44444440102.

20104444444 is a modest number, since divided by 444444 gives 20104 as remainder.

It is a congruent number.

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, 344184 + ... + 398335.

Almost surely, 220104444444 is an apocalyptic number.

It is an amenable number.

20104444444 is an abundant number, since it is smaller than the sum of its proper divisors (20146079716).

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

20104444444 is a wasteful number, since it uses less digits than its factorization.

20104444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743497 (or 743495 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 20104444444 its reverse (44444440102), we get a palindrome (64548884546).

The spelling of 20104444444 in words is "twenty billion, one hundred four million, four hundred forty-four thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 967 1934 3868 6769 13538 27076 742519 1485038 2970076 5197633 10395266 20790532 718015873 1436031746 2872063492 5026111111 10052222222 20104444444