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206513006 = 2785317293
BaseRepresentation
bin11000100111100…
…10001101101110
3112101120221120212
430103302031232
5410331404011
632254142422
75055221510
oct1423621556
9471527525
10206513006
11a6631307
12591b1a12
1333a2795b
141d5d9bb0
15131e408b
hexc4f236e

206513006 has 16 divisors (see below), whose sum is σ = 354457824. Its totient is φ = 88396704.

The previous prime is 206512981. The next prime is 206513009. The reversal of 206513006 is 600315602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206513009) 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, 3296 + ... + 20588.

It is an arithmetic number, because the mean of its divisors is an integer number (22153614).

Almost surely, 2206513006 is an apocalyptic number.

206513006 is a deficient number, since it is larger than the sum of its proper divisors (147944818).

206513006 is a wasteful number, since it uses less digits than its factorization.

206513006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18155.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 206513006 is about 14370.5603926917. The cubic root of 206513006 is about 591.0839081012.

Adding to 206513006 its reverse (600315602), we get a palindrome (806828608).

The spelling of 206513006 in words is "two hundred six million, five hundred thirteen thousand, six".

Divisors: 1 2 7 14 853 1706 5971 11942 17293 34586 121051 242102 14750929 29501858 103256503 206513006