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207106931069 = 406969508901
BaseRepresentation
bin1100000011100010001…
…0001111100101111101
3201210120122020012010122
43000320202033211331
511343123333243234
6235051004144325
720651205603443
oct3007042174575
9653518205118
10207106931069
117a919510755
123417b8380a5
13166b782462c
14a049d14b93
1555c236192e
hex303888f97d

207106931069 has 4 divisors (see below), whose sum is σ = 207107846940. Its totient is φ = 207106015200.

The previous prime is 207106931063. The next prime is 207106931089. The reversal of 207106931069 is 960139601702.

207106931069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 44888896900 + 162218034169 = 211870^2 + 402763^2 .

It is a cyclic number.

It is not a de Polignac number, because 207106931069 - 28 = 207106930813 is a prime.

It is a super-2 number, since 2×2071069310692 (a number of 23 digits) 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 (207106931063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152519 + ... + 661419.

It is an arithmetic number, because the mean of its divisors is an integer number (51776961735).

Almost surely, 2207106931069 is an apocalyptic number.

It is an amenable number.

207106931069 is a deficient number, since it is larger than the sum of its proper divisors (915871).

207106931069 is an equidigital number, since it uses as much as digits as its factorization.

207106931069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915870.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 207106931069 in words is "two hundred seven billion, one hundred six million, nine hundred thirty-one thousand, sixty-nine".

Divisors: 1 406969 508901 207106931069