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206462613121 = 7922971137767
BaseRepresentation
bin1100000001001000100…
…0010111011010000001
3201201220201211110001221
43000102020113122001
511340313412104441
6234503030155041
720626223153452
oct3002210273201
9651821743057
10206462613121
117a618843086
123401bab2a81
13166141ac9cb
149dc8513129
1555859dc8d1
hex3012217681

206462613121 has 8 divisors (see below), whose sum is σ = 209167269120. Its totient is φ = 203760237408.

The previous prime is 206462613043. The next prime is 206462613127. The reversal of 206462613121 is 121316264602.

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

It is a cyclic number.

It is not a de Polignac number, because 206462613121 - 221 = 206460515969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206462613127) 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, 387421 + ... + 750346.

It is an arithmetic number, because the mean of its divisors is an integer number (26145908640).

Almost surely, 2206462613121 is an apocalyptic number.

It is an amenable number.

206462613121 is a deficient number, since it is larger than the sum of its proper divisors (2704655999).

206462613121 is a wasteful number, since it uses less digits than its factorization.

206462613121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140143.

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 206462613121 its reverse (121316264602), we get a palindrome (327778877723).

The spelling of 206462613121 in words is "two hundred six billion, four hundred sixty-two million, six hundred thirteen thousand, one hundred twenty-one".

Divisors: 1 79 2297 181463 1137767 89883593 2613450799 206462613121