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2080418021 = 117313718911
BaseRepresentation
bin111110000000000…
…1010100011100101
312100222200012000022
41330000022203211
513230041334041
6542234324525
7102361155443
oct17400124345
95328605008
102080418021
11978383940
124a0889745
13272022aa6
1415a42db93
15c299a24b
hex7c00a8e5

2080418021 has 16 divisors (see below), whose sum is σ = 2317552128. Its totient is φ = 1851667200.

The previous prime is 2080417961. The next prime is 2080418033. The reversal of 2080418021 is 1208140802.

It is a cyclic number.

It is not a de Polignac number, because 2080418021 - 222 = 2076223717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2080418071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100556 + ... + 119466.

It is an arithmetic number, because the mean of its divisors is an integer number (144847008).

Almost surely, 22080418021 is an apocalyptic number.

It is an amenable number.

2080418021 is a deficient number, since it is larger than the sum of its proper divisors (237134107).

2080418021 is a wasteful number, since it uses less digits than its factorization.

2080418021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19132.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 2080418021 is about 45611.5996321111. The cubic root of 2080418021 is about 1276.5863675322.

Adding to 2080418021 its reverse (1208140802), we get a palindrome (3288558823).

The spelling of 2080418021 in words is "two billion, eighty million, four hundred eighteen thousand, twenty-one".

Divisors: 1 11 73 137 803 1507 10001 18911 110011 208021 1380503 2590807 15185533 28498877 189128911 2080418021