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206929319 = 346959651
BaseRepresentation
bin11000101010101…
…11110110100111
3112102101002122212
430111113312213
5410433214234
632311114035
75061604322
oct1425276647
9472332585
10206929319
11a6896073
125937291b
1333b422ac
141d6a77b9
15132775ce
hexc557da7

206929319 has 4 divisors (see below), whose sum is σ = 206992440. Its totient is φ = 206866200.

The previous prime is 206929313. The next prime is 206929339. The reversal of 206929319 is 913929602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206929319 - 220 = 205880743 is a prime.

It is a super-2 number, since 2×2069293192 = 85639486123607522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206929313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26357 + ... + 33294.

It is an arithmetic number, because the mean of its divisors is an integer number (51748110).

Almost surely, 2206929319 is an apocalyptic number.

206929319 is a deficient number, since it is larger than the sum of its proper divisors (63121).

206929319 is an equidigital number, since it uses as much as digits as its factorization.

206929319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63120.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 206929319 is about 14385.0380256710. The cubic root of 206929319 is about 591.4808334548.

The spelling of 206929319 in words is "two hundred six million, nine hundred twenty-nine thousand, three hundred nineteen".

Divisors: 1 3469 59651 206929319