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206123127 = 379815387
BaseRepresentation
bin11000100100100…
…11000001110111
3112100212010202220
430102103001313
5410231420002
632241533423
75052006030
oct1422230167
9470763686
10206123127
11a63953a1
1259044273
133391c362
141d537a87
15131687bc
hexc493077

206123127 has 8 divisors (see below), whose sum is σ = 314092416. Its totient is φ = 117784632.

The previous prime is 206123119. The next prime is 206123149. The reversal of 206123127 is 721321602.

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

It is not a de Polignac number, because 206123127 - 23 = 206123119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206123097 and 206123106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206123327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4907673 + ... + 4907714.

It is an arithmetic number, because the mean of its divisors is an integer number (39261552).

Almost surely, 2206123127 is an apocalyptic number.

206123127 is a deficient number, since it is larger than the sum of its proper divisors (107969289).

206123127 is an equidigital number, since it uses as much as digits as its factorization.

206123127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9815397.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 206123127 is about 14356.9887859537. The cubic root of 206123127 is about 590.7117017143.

Adding to 206123127 its reverse (721321602), we get a palindrome (927444729).

The spelling of 206123127 in words is "two hundred six million, one hundred twenty-three thousand, one hundred twenty-seven".

Divisors: 1 3 7 21 9815387 29446161 68707709 206123127