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20220044444 = 2215742897507
BaseRepresentation
bin10010110101001101…
…010110010010011100
31221012011120200110222
4102311031112102130
5312402312410234
613142225420512
71314033353615
oct226515262234
957164520428
1020220044444
118636762736
123b0379a738
131ba315c652
14d9b604c0c
157d523442e
hex4b535649c

20220044444 has 24 divisors (see below), whose sum is σ = 35623507920. Its totient is φ = 10041947136.

The previous prime is 20220044423. The next prime is 20220044447. The reversal of 20220044444 is 44444002202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220044447) by changing a digit.

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, 2689739 + ... + 2697245.

It is an arithmetic number, because the mean of its divisors is an integer number (1484312830).

Almost surely, 220220044444 is an apocalyptic number.

It is an amenable number.

20220044444 is a deficient number, since it is larger than the sum of its proper divisors (15403463476).

20220044444 is a wasteful number, since it uses less digits than its factorization.

20220044444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11957 (or 11955 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20220044444 its reverse (44444002202), we get a palindrome (64664046646).

The spelling of 20220044444 in words is "twenty billion, two hundred twenty million, forty-four thousand, four hundred forty-four".

Divisors: 1 2 4 157 314 628 4289 7507 8578 15014 17156 30028 673373 1178599 1346746 2357198 2693492 4714396 32197523 64395046 128790092 5055011111 10110022222 20220044444