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21110424044 = 225277606011
BaseRepresentation
bin10011101010010001…
…111000000111101100
32000111012222122200012
4103222101320013230
5321213232032134
613410433352352
71345064433533
oct235221700754
960435878605
1021110424044
118a53314046
124111a086b8
131cb5768198
14104397931a
158384b06ce
hex4ea4781ec

21110424044 has 6 divisors (see below), whose sum is σ = 36943242084. Its totient is φ = 10555212020.

The previous prime is 21110424007. The next prime is 21110424089. The reversal of 21110424044 is 44042401112.

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 as a sum of consecutive naturals, namely, 2638803002 + ... + 2638803009.

It is an arithmetic number, because the mean of its divisors is an integer number (6157207014).

Almost surely, 221110424044 is an apocalyptic number.

It is an amenable number.

21110424044 is a deficient number, since it is larger than the sum of its proper divisors (15832818040).

21110424044 is a wasteful number, since it uses less digits than its factorization.

21110424044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277606015 (or 5277606013 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 21110424044 its reverse (44042401112), we get a palindrome (65152825156).

The spelling of 21110424044 in words is "twenty-one billion, one hundred ten million, four hundred twenty-four thousand, forty-four".

Divisors: 1 2 4 5277606011 10555212022 21110424044