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69380540045321 = 173401043584077
BaseRepresentation
bin11111100011001111010100…
…11100011001100000001001
3100002122201022010102120222012
433301213222130121200021
533043212321222422241
6403320551410505305
720420402313632201
oct1761475234314011
9302581263376865
1069380540045321
112011a13812165a
1279464b6595235
132c9373153801b
14131c070d17401
15804b315356eb
hex3f19ea719809

69380540045321 has 4 divisors (see below), whose sum is σ = 69781583629572. Its totient is φ = 68979496461072.

The previous prime is 69380540045317. The next prime is 69380540045393. The reversal of 69380540045321 is 12354004508396.

69380540045321 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.

It can be written as a sum of positive squares in 2 ways, for example, as 55019009550400 + 14361530494921 = 7417480^2 + 3789661^2 .

It is a cyclic number.

It is not a de Polignac number, because 69380540045321 - 22 = 69380540045317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69380540045321.

It is not an unprimeable number, because it can be changed into a prime (69380540041321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200521791866 + ... + 200521792211.

It is an arithmetic number, because the mean of its divisors is an integer number (17445395907393).

Almost surely, 269380540045321 is an apocalyptic number.

It is an amenable number.

69380540045321 is a deficient number, since it is larger than the sum of its proper divisors (401043584251).

69380540045321 is a wasteful number, since it uses less digits than its factorization.

69380540045321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401043584250.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 69380540045321 in words is "sixty-nine trillion, three hundred eighty billion, five hundred forty million, forty-five thousand, three hundred twenty-one".

Divisors: 1 173 401043584077 69380540045321