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2068297209 = 321120891891
BaseRepresentation
bin111101101000111…
…1011010111111001
312100010212101101100
41323101323113321
513213441002314
6541122442013
7102153144006
oct17321732771
95303771340
102068297209
11971555340
12498803309
1326c66ab04
141589968ad
15c18a3c09
hex7b47b5f9

2068297209 has 12 divisors (see below), whose sum is σ = 3259135152. Its totient is φ = 1253513400.

The previous prime is 2068297177. The next prime is 2068297211. The reversal of 2068297209 is 9027928602.

It is not a de Polignac number, because 2068297209 - 25 = 2068297177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2068297219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10445847 + ... + 10446044.

It is an arithmetic number, because the mean of its divisors is an integer number (271594596).

Almost surely, 22068297209 is an apocalyptic number.

It is an amenable number.

2068297209 is a deficient number, since it is larger than the sum of its proper divisors (1190837943).

2068297209 is a wasteful number, since it uses less digits than its factorization.

2068297209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20891908 (or 20891905 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 2068297209 is about 45478.5356954245. The cubic root of 2068297209 is about 1274.1023457856.

The spelling of 2068297209 in words is "two billion, sixty-eight million, two hundred ninety-seven thousand, two hundred nine".

Divisors: 1 3 9 11 33 99 20891891 62675673 188027019 229810801 689432403 2068297209