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206883810839 = 3710395381573
BaseRepresentation
bin1100000010101100111…
…1000110111000010111
3201210000002101111201102
43000223033012320113
511342144223421324
6235012514020315
720642526243236
oct3005317067027
9653002344642
10206883810839
117a814577172
1234118b7769b
1316680533924
14a028434b1d
1555ac98bdae
hex302b3c6e17

206883810839 has 8 divisors (see below), whose sum is σ = 212679804480. Its totient is φ = 201098582496.

The previous prime is 206883810829. The next prime is 206883810857. The reversal of 206883810839 is 938018388602.

206883810839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 206883810839 - 220 = 206882762263 is a prime.

It is a super-2 number, since 2×2068838108392 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206883810829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2652344 + ... + 2729229.

It is an arithmetic number, because the mean of its divisors is an integer number (26584975560).

Almost surely, 2206883810839 is an apocalyptic number.

206883810839 is a deficient number, since it is larger than the sum of its proper divisors (5795993641).

206883810839 is a wasteful number, since it uses less digits than its factorization.

206883810839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382649.

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 206883810839 in words is "two hundred six billion, eight hundred eighty-three million, eight hundred ten thousand, eight hundred thirty-nine".

Divisors: 1 37 1039 38443 5381573 199118201 5591454347 206883810839