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206012445 = 3513734163
BaseRepresentation
bin11000100011110…
…00000000011101
3112100122111221120
430101320000131
5410214344240
632235321153
75051035242
oct1421700035
9470574846
10206012445
11a631a221
1258bb01b9
13338b0b72
141d5095c9
1513145ad0
hexc47801d

206012445 has 8 divisors (see below), whose sum is σ = 329619936. Its totient is φ = 109873296.

The previous prime is 206012437. The next prime is 206012461. The reversal of 206012445 is 544210602.

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

It is not a de Polignac number, because 206012445 - 23 = 206012437 is a prime.

It is a super-2 number, since 2×2060124452 = 84882254989756050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 6867067 + ... + 6867096.

It is an arithmetic number, because the mean of its divisors is an integer number (41202492).

Almost surely, 2206012445 is an apocalyptic number.

It is an amenable number.

206012445 is a deficient number, since it is larger than the sum of its proper divisors (123607491).

206012445 is a wasteful number, since it uses less digits than its factorization.

206012445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13734171.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 206012445 is about 14353.1336299778. The cubic root of 206012445 is about 590.6059512347.

The spelling of 206012445 in words is "two hundred six million, twelve thousand, four hundred forty-five".

Divisors: 1 3 5 15 13734163 41202489 68670815 206012445