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13065290443 = 51787252289
BaseRepresentation
bin11000010101100000…
…01000001011001011
31020201112122112010001
430022300020023023
5203224203243233
610000242303431
7641525064532
oct141260101313
936645575101
1013065290443
1155a501a0a7
122647657b77
131302a819ba
148bd2c3319
1551704c27d
hex30ac082cb

13065290443 has 4 divisors (see below), whose sum is σ = 13065594520. Its totient is φ = 13064986368.

The previous prime is 13065290431. The next prime is 13065290477. The reversal of 13065290443 is 34409256031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34409256031 = 311109976001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13065290443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13065230443) 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, 74358 + ... + 177931.

It is an arithmetic number, because the mean of its divisors is an integer number (3266398630).

Almost surely, 213065290443 is an apocalyptic number.

13065290443 is a deficient number, since it is larger than the sum of its proper divisors (304077).

13065290443 is an equidigital number, since it uses as much as digits as its factorization.

13065290443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304076.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 13065290443 in words is "thirteen billion, sixty-five million, two hundred ninety thousand, four hundred forty-three".

Divisors: 1 51787 252289 13065290443