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206990230827 = 31727714652101
BaseRepresentation
bin1100000011000110010…
…1000100010100101011
3201210021111122012111110
43000301211010110223
511342403444341302
6235031235001403
720645260634502
oct3006145042453
9653244565443
10206990230827
117a869653076
1234148739263
13166995b4633
14a038617839
1555b6eadb6c
hex303194452b

206990230827 has 16 divisors (see below), whose sum is σ = 293276473632. Its totient is φ = 129407347200.

The previous prime is 206990230817. The next prime is 206990230829. The reversal of 206990230827 is 728032099602.

It is not a de Polignac number, because 206990230827 - 26 = 206990230763 is a prime.

It is a super-2 number, since 2×2069902308272 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206990230829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7311924 + ... + 7340177.

It is an arithmetic number, because the mean of its divisors is an integer number (18329779602).

Almost surely, 2206990230827 is an apocalyptic number.

206990230827 is a deficient number, since it is larger than the sum of its proper divisors (86286242805).

206990230827 is a wasteful number, since it uses less digits than its factorization.

206990230827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14652398.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 206990230827 in words is "two hundred six billion, nine hundred ninety million, two hundred thirty thousand, eight hundred twenty-seven".

Divisors: 1 3 17 51 277 831 4709 14127 14652101 43956303 249085717 747257151 4058631977 12175895931 68996743609 206990230827