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13765320469 = 191091664061
BaseRepresentation
bin11001101000111101…
…00001111100010101
31022112022212201210001
430310132201330111
5211142410223334
610153530331301
7665055202435
oct146436417425
938468781701
1013765320469
11592418a00a
122801b89b31
1313b4b01954
149482682c5
15558728714
hex3347a1f15

13765320469 has 8 divisors (see below), whose sum is σ = 14503114080. Its totient is φ = 13028857200.

The previous prime is 13765320421. The next prime is 13765320509. The reversal of 13765320469 is 96402356731.

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 13765320469 - 29 = 13765319957 is a prime.

It is a super-3 number, since 3×137653204693 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14765320469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311302 + ... + 352759.

It is an arithmetic number, because the mean of its divisors is an integer number (1812889260).

Almost surely, 213765320469 is an apocalyptic number.

13765320469 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13765320469 is a deficient number, since it is larger than the sum of its proper divisors (737793611).

13765320469 is a wasteful number, since it uses less digits than its factorization.

13765320469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665171.

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 13765320469 in words is "thirteen billion, seven hundred sixty-five million, three hundred twenty thousand, four hundred sixty-nine".

Divisors: 1 19 1091 20729 664061 12617159 724490551 13765320469