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2020505056 = 2589709447
BaseRepresentation
bin111100001101110…
…0111010111100000
312012210221021212121
41320123213113200
513114222130211
6532254234024
7101033003203
oct17033472740
95183837777
102020505056
11947582399
124847b5914
132627a662b
141524b593a
15bc5b3271
hex786e75e0

2020505056 has 24 divisors (see below), whose sum is σ = 4022570160. Its totient is φ = 998899968.

The previous prime is 2020504951. The next prime is 2020505057. The reversal of 2020505056 is 6505050202.

It is a super-3 number, since 3×20205050563 (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2020505056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020505057) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 351876 + ... + 357571.

It is an arithmetic number, because the mean of its divisors is an integer number (167607090).

Almost surely, 22020505056 is an apocalyptic number.

It is an amenable number.

2020505056 is a deficient number, since it is larger than the sum of its proper divisors (2002065104).

2020505056 is an equidigital number, since it uses as much as digits as its factorization.

2020505056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709546 (or 709538 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2020505056 is about 44950.0284315817. The cubic root of 2020505056 is about 1264.2122100043.

Adding to 2020505056 its reverse (6505050202), we get a palindrome (8525555258).

The spelling of 2020505056 in words is "two billion, twenty million, five hundred five thousand, fifty-six".

Divisors: 1 2 4 8 16 32 89 178 356 712 1424 2848 709447 1418894 2837788 5675576 11351152 22702304 63140783 126281566 252563132 505126264 1010252528 2020505056