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206066013 = 3131524341
BaseRepresentation
bin11000100100001…
…01000101011101
3112100202020102120
430102011011131
5410223103023
632240413153
75051350356
oct1422050535
9470666376
10206066013
11a635649a
12590171b9
13338cc36a
141d520d2d
15131568e3
hexc48515d

206066013 has 8 divisors (see below), whose sum is σ = 276852576. Its totient is φ = 136328400.

The previous prime is 206065997. The next prime is 206066033. The reversal of 206066013 is 310660602.

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

It is not a de Polignac number, because 206066013 - 24 = 206065997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206066033) 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, 261778 + ... + 262563.

It is an arithmetic number, because the mean of its divisors is an integer number (34606572).

Almost surely, 2206066013 is an apocalyptic number.

It is an amenable number.

206066013 is a deficient number, since it is larger than the sum of its proper divisors (70786563).

206066013 is a wasteful number, since it uses less digits than its factorization.

206066013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524475.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 206066013 is about 14354.9995820272. Note that the first 3 decimals coincide. The cubic root of 206066013 is about 590.6571372004.

The spelling of 206066013 in words is "two hundred six million, sixty-six thousand, thirteen".

Divisors: 1 3 131 393 524341 1573023 68688671 206066013