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206808441 = 379848021
BaseRepresentation
bin11000101001110…
…10010101111001
3112102010221211220
430110322111321
5410420332231
632304342253
75060562030
oct1424722571
9472127756
10206808441
11a6813274
1259314989
1333acc278
141d675717
1513251896
hexc53a579

206808441 has 8 divisors (see below), whose sum is σ = 315136704. Its totient is φ = 118176240.

The previous prime is 206808439. The next prime is 206808443. The reversal of 206808441 is 144808602.

It is an interprime number because it is at equal distance from previous prime (206808439) and next prime (206808443).

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

It is not a de Polignac number, because 206808441 - 21 = 206808439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206808443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4923990 + ... + 4924031.

It is an arithmetic number, because the mean of its divisors is an integer number (39392088).

Almost surely, 2206808441 is an apocalyptic number.

206808441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

206808441 is a deficient number, since it is larger than the sum of its proper divisors (108328263).

206808441 is an equidigital number, since it uses as much as digits as its factorization.

206808441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9848031.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 206808441 is about 14380.8358936468. The cubic root of 206808441 is about 591.3656396184.

The spelling of 206808441 in words is "two hundred six million, eight hundred eight thousand, four hundred forty-one".

Divisors: 1 3 7 21 9848021 29544063 68936147 206808441