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2068799211 = 371949787
BaseRepresentation
bin111101101001111…
…0101111011101011
312100011210220000000
41323103311323223
513214103033321
6541141314043
7102160334403
oct17323657353
95304726000
102068799211
11971868516
12498a05923
1326c7b545b
14158a87803
15c1952826
hex7b4f5eeb

2068799211 has 32 divisors (see below), whose sum is σ = 3266092800. Its totient is φ = 1306583784.

The previous prime is 2068799179. The next prime is 2068799233. The reversal of 2068799211 is 1129978602.

It is not a de Polignac number, because 2068799211 - 25 = 2068799179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2068799251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16660 + ... + 66446.

It is an arithmetic number, because the mean of its divisors is an integer number (102065400).

Almost surely, 22068799211 is an apocalyptic number.

2068799211 is a deficient number, since it is larger than the sum of its proper divisors (1197293589).

2068799211 is an frugal number, since it uses more digits than its factorization.

2068799211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49827 (or 49809 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 2068799211 is about 45484.0544696710. The cubic root of 2068799211 is about 1274.2054177205.

The spelling of 2068799211 in words is "two billion, sixty-eight million, seven hundred ninety-nine thousand, two hundred eleven".

Divisors: 1 3 9 19 27 57 81 171 243 513 729 1539 2187 4617 13851 41553 49787 149361 448083 945953 1344249 2837859 4032747 8513577 12098241 25540731 36294723 76622193 108884169 229866579 689599737 2068799211