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20104443444 = 2231675370287
BaseRepresentation
bin10010101110010100…
…010111011000110100
31220220010001112201110
4102232110113120310
5312133214142234
613122535555020
71311130643511
oct225624273064
956803045643
1020104443444
118587485a18
123a90b2ba70
131b85215aa7
14d8a112308
157c9eec1e9
hex4ae517634

20104443444 has 12 divisors (see below), whose sum is σ = 46910368064. Its totient is φ = 6701481144.

The previous prime is 20104443431. The next prime is 20104443487. The reversal of 20104443444 is 44434440102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×201044434443 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 3 ways as a sum of consecutive naturals, for example, 837685132 + ... + 837685155.

Almost surely, 220104443444 is an apocalyptic number.

It is an amenable number.

20104443444 is an abundant number, since it is smaller than the sum of its proper divisors (26805924620).

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

20104443444 is a wasteful number, since it uses less digits than its factorization.

20104443444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675370294 (or 1675370292 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 20104443444 its reverse (44434440102), we get a palindrome (64538883546).

The spelling of 20104443444 in words is "twenty billion, one hundred four million, four hundred forty-three thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 1675370287 3350740574 5026110861 6701481148 10052221722 20104443444