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20028080572 = 2229877196871
BaseRepresentation
bin10010101001110001…
…000100000110111100
31220200210100220112221
4102221301010012330
5312004142034242
613111211135124
71306212606313
oct225161040674
956623326487
1020028080572
118548369405
123a6b4444a4
131b7245a066
14d7dd1527a
157c3466167
hex4a9c441bc

20028080572 has 24 divisors (see below), whose sum is σ = 36299259360. Its totient is φ = 9657654720.

The previous prime is 20028080551. The next prime is 20028080581. The reversal of 20028080572 is 27508082002.

It is a super-2 number, since 2×200280805722 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3297 + ... + 200167.

It is an arithmetic number, because the mean of its divisors is an integer number (1512469140).

Almost surely, 220028080572 is an apocalyptic number.

It is an amenable number.

20028080572 is a deficient number, since it is larger than the sum of its proper divisors (16271178788).

20028080572 is a wasteful number, since it uses less digits than its factorization.

20028080572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197781 (or 197779 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The spelling of 20028080572 in words is "twenty billion, twenty-eight million, eighty thousand, five hundred seventy-two".

Divisors: 1 2 4 29 58 116 877 1754 3508 25433 50866 101732 196871 393742 787484 5709259 11418518 22837036 172655867 345311734 690623468 5007020143 10014040286 20028080572