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20375126992 = 2411115767767
BaseRepresentation
bin10010111110011100…
…111100001111010000
31221120222101200202001
4102332130330033100
5313212013030432
613205445403344
71320625502413
oct227634741720
957528350661
1020375126992
118706256530
123b47709554
131bc931aa7c
14db4053b7a
157e3b699e7
hex4be73c3d0

20375126992 has 20 divisors (see below), whose sum is σ = 43065609696. Its totient is φ = 9261421280.

The previous prime is 20375126969. The next prime is 20375127029. The reversal of 20375126992 is 29962157302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57883708 + ... + 57884059.

Almost surely, 220375126992 is an apocalyptic number.

20375126992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20375126992 is an abundant number, since it is smaller than the sum of its proper divisors (22690482704).

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

20375126992 is a wasteful number, since it uses less digits than its factorization.

20375126992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115767786 (or 115767780 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 20375126992 in words is "twenty billion, three hundred seventy-five million, one hundred twenty-six thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 11 16 22 44 88 176 115767767 231535534 463071068 926142136 1273445437 1852284272 2546890874 5093781748 10187563496 20375126992