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20243255044 = 22191451183569
BaseRepresentation
bin10010110110100101…
…111000111100000100
31221020210020220102211
4102312211320330010
5312424233130134
613144415113204
71314434554165
oct226645707404
957223226384
1020243255044
118648876151
123b0b512804
131ba7bc822c
14da072776c
157d72bb764
hex4b6978f04

20243255044 has 24 divisors (see below), whose sum is σ = 37316109600. Its totient is φ = 9582249600.

The previous prime is 20243255009. The next prime is 20243255051. The reversal of 20243255044 is 44055234202.

It is a junction number, because it is equal to n+sod(n) for n = 20243254997 and 20243255015.

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, 18492 + ... + 202060.

It is an arithmetic number, because the mean of its divisors is an integer number (1554837900).

Almost surely, 220243255044 is an apocalyptic number.

It is an amenable number.

20243255044 is a deficient number, since it is larger than the sum of its proper divisors (17072854556).

20243255044 is a wasteful number, since it uses less digits than its factorization.

20243255044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185043 (or 185041 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 20243255044 its reverse (44055234202), we get a palindrome (64298489246).

The spelling of 20243255044 in words is "twenty billion, two hundred forty-three million, two hundred fifty-five thousand, forty-four".

Divisors: 1 2 4 19 38 76 1451 2902 5804 27569 55138 110276 183569 367138 734276 3487811 6975622 13951244 266358619 532717238 1065434476 5060813761 10121627522 20243255044