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2068172768311 = 13197980389193
BaseRepresentation
bin11110000110001000101…
…101000000010000110111
321022201022111221022011221
4132012020231000100313
5232341104212041221
64222034440011211
7302264151321436
oct36061055002067
97281274838157
102068172768311
1172811a679721
122949aaa60b07
13120049275a30
147215894111d
1538be7ea6541
hex1e188b40437

2068172768311 has 8 divisors (see below), whose sum is σ = 2228388457680. Its totient is φ = 1908117861312.

The previous prime is 2068172768309. The next prime is 2068172768323. The reversal of 2068172768311 is 1138672718602.

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

It is not a de Polignac number, because 2068172768311 - 21 = 2068172768309 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 (2068172768341) 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 7 ways as a sum of consecutive naturals, for example, 40168870 + ... + 40220323.

It is an arithmetic number, because the mean of its divisors is an integer number (278548557210).

Almost surely, 22068172768311 is an apocalyptic number.

2068172768311 is a deficient number, since it is larger than the sum of its proper divisors (160215689369).

2068172768311 is a wasteful number, since it uses less digits than its factorization.

2068172768311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80391185.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 2068172768311 in words is "two trillion, sixty-eight billion, one hundred seventy-two million, seven hundred sixty-eight thousand, three hundred eleven".

Divisors: 1 13 1979 25727 80389193 1045059509 159090212947 2068172768311