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206494748079 = 3174048916629
BaseRepresentation
bin1100000001010000001…
…0111100110110101111
3201201222222022001221120
43000110002330312233
511340400123414304
6234510135032023
720630063253414
oct3002402746657
9651888261846
10206494748079
117a6349a15a4
123402a80b613
131661aa51689
149dcc8ba10b
1555887390d9
hex30140bcdaf

206494748079 has 8 divisors (see below), whose sum is σ = 291521997360. Its totient is φ = 129565332096.

The previous prime is 206494748071. The next prime is 206494748087. The reversal of 206494748079 is 970847494602.

It is an interprime number because it is at equal distance from previous prime (206494748071) and next prime (206494748087).

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

It is not a de Polignac number, because 206494748079 - 23 = 206494748071 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206494748071) 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, 2024458264 + ... + 2024458365.

It is an arithmetic number, because the mean of its divisors is an integer number (36440249670).

Almost surely, 2206494748079 is an apocalyptic number.

206494748079 is a deficient number, since it is larger than the sum of its proper divisors (85027249281).

206494748079 is a wasteful number, since it uses less digits than its factorization.

206494748079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048916649.

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 206494748079 in words is "two hundred six billion, four hundred ninety-four million, seven hundred forty-eight thousand, seventy-nine".

Divisors: 1 3 17 51 4048916629 12146749887 68831582693 206494748079