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20054830874 = 2133072512507
BaseRepresentation
bin10010101011010111…
…000110111100011010
31220202122200222001212
4102223113012330122
5312033014041444
613114004343122
71306656151451
oct225327067432
956678628055
1020054830874
11856147a2a1
123a783a4aa2
131b77b64b40
14d836b9b98
157c599c19e
hex4ab5c6f1a

20054830874 has 16 divisors (see below), whose sum is σ = 32501803488. Its totient is φ = 9225922032.

The previous prime is 20054830843. The next prime is 20054830877. The reversal of 20054830874 is 47803845002.

It is not an unprimeable number, because it can be changed into a prime (20054830877) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1248272 + ... + 1264235.

It is an arithmetic number, because the mean of its divisors is an integer number (2031362718).

Almost surely, 220054830874 is an apocalyptic number.

20054830874 is a deficient number, since it is larger than the sum of its proper divisors (12446972614).

20054830874 is a wasteful number, since it uses less digits than its factorization.

20054830874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512829.

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 20054830874 in words is "twenty billion, fifty-four million, eight hundred thirty thousand, eight hundred seventy-four".

Divisors: 1 2 13 26 307 614 3991 7982 2512507 5025014 32662591 65325182 771339649 1542679298 10027415437 20054830874