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2080298021 = 11318739829
BaseRepresentation
bin111101111111110…
…1101010000100101
312100222110002101212
41323333231100211
513230024014041
6542232001205
7102360145544
oct17377552045
95328402355
102080298021
1197830176a
124a0830205
13271cb0299
1415a3dc15b
15c29748eb
hex7bfed425

2080298021 has 8 divisors (see below), whose sum is σ = 2100041880. Its totient is φ = 2060577792.

The previous prime is 2080297993. The next prime is 2080298053. The reversal of 2080298021 is 1208920802.

It can be written as a sum of positive squares in 4 ways, for example, as 25921 + 2080272100 = 161^2 + 45610^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2080298021 - 26 = 2080297957 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 (2080298081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206735 + ... + 216563.

It is an arithmetic number, because the mean of its divisors is an integer number (262505235).

Almost surely, 22080298021 is an apocalyptic number.

It is an amenable number.

2080298021 is a deficient number, since it is larger than the sum of its proper divisors (19743859).

2080298021 is a wasteful number, since it uses less digits than its factorization.

2080298021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11815.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2080298021 is about 45610.2841582904. The cubic root of 2080298021 is about 1276.5618222552.

The spelling of 2080298021 in words is "two billion, eighty million, two hundred ninety-eight thousand, twenty-one".

Divisors: 1 113 1873 9829 211649 1110677 18409717 2080298021