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13868002589 = 72283020461
BaseRepresentation
bin11001110101001100…
…01110110100011101
31022210111002112011112
430322212032310131
5211400202040324
610212035231405
71000443035300
oct147246166435
938714075145
1013868002589
115977142671
122830448565
1314001741bc
14957b56b37
1556275cc0e
hex33a98ed1d

13868002589 has 6 divisors (see below), whose sum is σ = 16132166334. Its totient is φ = 11886859320.

The previous prime is 13868002583. The next prime is 13868002667. The reversal of 13868002589 is 98520086831.

It can be written as a sum of positive squares in only one way, i.e., 7033673689 + 6834328900 = 83867^2 + 82670^2 .

It is a de Polignac number, because none of the positive numbers 2k-13868002589 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 (13868002583) 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 5 ways as a sum of consecutive naturals, for example, 141510182 + ... + 141510279.

It is an arithmetic number, because the mean of its divisors is an integer number (2688694389).

Almost surely, 213868002589 is an apocalyptic number.

It is an amenable number.

13868002589 is a deficient number, since it is larger than the sum of its proper divisors (2264163745).

13868002589 is an equidigital number, since it uses as much as digits as its factorization.

13868002589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283020475 (or 283020468 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 13868002589 in words is "thirteen billion, eight hundred sixty-eight million, two thousand, five hundred eighty-nine".

Divisors: 1 7 49 283020461 1981143227 13868002589