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13606928933 = 131046686841
BaseRepresentation
bin11001010110000100…
…10100001000100101
31022010021211121102212
430223002110020211
5210331333211213
610130111413205
7661122662513
oct145302241045
938107747385
1013606928933
115852836114
122778b24205
13138b055350
149311d74b3
1554988c9a8
hex32b094225

13606928933 has 4 divisors (see below), whose sum is σ = 14653615788. Its totient is φ = 12560242080.

The previous prime is 13606928927. The next prime is 13606928957. The reversal of 13606928933 is 33982960631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33982960631 = 160721146833.

It can be written as a sum of positive squares in 2 ways, for example, as 2145727684 + 11461201249 = 46322^2 + 107057^2 .

It is a cyclic number.

It is not a de Polignac number, because 13606928933 - 24 = 13606928917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13606922933) 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 3 ways as a sum of consecutive naturals, for example, 523343408 + ... + 523343433.

It is an arithmetic number, because the mean of its divisors is an integer number (3663403947).

Almost surely, 213606928933 is an apocalyptic number.

13606928933 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13606928933 is a deficient number, since it is larger than the sum of its proper divisors (1046686855).

13606928933 is a wasteful number, since it uses less digits than its factorization.

13606928933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046686854.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 13606928933 in words is "thirteen billion, six hundred six million, nine hundred twenty-eight thousand, nine hundred thirty-three".

Divisors: 1 13 1046686841 13606928933