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206682133 = 7195926339
BaseRepresentation
bin11000101000110…
…11100000010101
3112101220112120211
430110123200111
5410402312013
632301525421
75056524550
oct1424334025
9471815524
10206682133
11a6737389
1259273871
1333a86928
141d641697
151322923d
hexc51b815

206682133 has 16 divisors (see below), whose sum is σ = 252864000. Its totient is φ = 164981232.

The previous prime is 206682121. The next prime is 206682167. The reversal of 206682133 is 331286602.

It is a cyclic number.

It is not a de Polignac number, because 206682133 - 29 = 206681621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206682095 and 206682104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206682193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5323 + ... + 21016.

It is an arithmetic number, because the mean of its divisors is an integer number (15804000).

Almost surely, 2206682133 is an apocalyptic number.

It is an amenable number.

206682133 is a deficient number, since it is larger than the sum of its proper divisors (46181867).

206682133 is a wasteful number, since it uses less digits than its factorization.

206682133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26424.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 206682133 is about 14376.4436840270. The cubic root of 206682133 is about 591.2452231555.

It can be divided in two parts, 20668 and 2133, that added together give a square (22801 = 1512).

The spelling of 206682133 in words is "two hundred six million, six hundred eighty-two thousand, one hundred thirty-three".

Divisors: 1 7 19 59 133 413 1121 7847 26339 184373 500441 1554001 3503087 10878007 29526019 206682133