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206931483 = 33112330293
BaseRepresentation
bin11000101010110…
…00011000011011
3112102101012122000
430111120120123
5410433301413
632311132043
75061613533
oct1425303033
9472335560
10206931483
11a6897760
1259374023
1333b43285
141d6a84c3
1513278073
hexc55861b

206931483 has 32 divisors (see below), whose sum is σ = 348986880. Its totient is φ = 119956320.

The previous prime is 206931481. The next prime is 206931509. The reversal of 206931483 is 384139602.

It is not a de Polignac number, because 206931483 - 21 = 206931481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206931481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8316 + ... + 21977.

It is an arithmetic number, because the mean of its divisors is an integer number (10905840).

Almost surely, 2206931483 is an apocalyptic number.

206931483 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

206931483 is a deficient number, since it is larger than the sum of its proper divisors (142055397).

206931483 is a wasteful number, since it uses less digits than its factorization.

206931483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30336 (or 30330 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 206931483 is about 14385.1132425157. The cubic root of 206931483 is about 591.4828952861.

The spelling of 206931483 in words is "two hundred six million, nine hundred thirty-one thousand, four hundred eighty-three".

Divisors: 1 3 9 11 23 27 33 69 99 207 253 297 621 759 2277 6831 30293 90879 272637 333223 696739 817911 999669 2090217 2999007 6270651 7664129 8997021 18811953 22992387 68977161 206931483