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206062381 = 7149197567
BaseRepresentation
bin11000100100001…
…00001100101101
3112100202001110001
430102010030231
5410222444011
632240344301
75051333650
oct1422041455
9470661401
10206062381
11a6353798
1259015091
13338ca805
141d51d897
15131557c1
hexc48432d

206062381 has 8 divisors (see below), whose sum is σ = 237081600. Its totient is φ = 175438608.

The previous prime is 206062369. The next prime is 206062399. The reversal of 206062381 is 183260602.

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 206062381 - 211 = 206060333 is a prime.

It is a super-2 number, since 2×2060623812 = 84923409726778322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206062981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97741 + ... + 99826.

It is an arithmetic number, because the mean of its divisors is an integer number (29635200).

Almost surely, 2206062381 is an apocalyptic number.

It is an amenable number.

206062381 is a deficient number, since it is larger than the sum of its proper divisors (31019219).

206062381 is a wasteful number, since it uses less digits than its factorization.

206062381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197723.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 206062381 is about 14354.8730750223. The cubic root of 206062381 is about 590.6536669867.

The spelling of 206062381 in words is "two hundred six million, sixty-two thousand, three hundred eighty-one".

Divisors: 1 7 149 1043 197567 1382969 29437483 206062381