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206071313 = 73600791
BaseRepresentation
bin11000100100001…
…10011000010001
3112100202111200212
430102012120101
5410223240223
632240453505
75051402000
oct1422063021
9470674625
10206071313
11a635a478
125901a295
13339018b6
141d522c37
1513158278
hexc486611

206071313 has 8 divisors (see below), whose sum is σ = 240316800. Its totient is φ = 176632260.

The previous prime is 206071309. The next prime is 206071319. The reversal of 206071313 is 313170602.

It is a happy number.

It is not a de Polignac number, because 206071313 - 22 = 206071309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206071319) 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, 300053 + ... + 300738.

It is an arithmetic number, because the mean of its divisors is an integer number (30039600).

Almost surely, 2206071313 is an apocalyptic number.

It is an amenable number.

206071313 is a deficient number, since it is larger than the sum of its proper divisors (34245487).

206071313 is an frugal number, since it uses more digits than its factorization.

206071313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600812 (or 600798 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 206071313 is about 14355.1841855129. The cubic root of 206071313 is about 590.6622010404.

The spelling of 206071313 in words is "two hundred six million, seventy-one thousand, three hundred thirteen".

Divisors: 1 7 49 343 600791 4205537 29438759 206071313