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13708690453 = 24156882533
BaseRepresentation
bin11001100010001101…
…00000010000010101
31022101101022122000001
430301012200100111
5211033411043303
610144144451301
7663466642363
oct146106402025
938341278001
1013708690453
1158a5220047
1227a7019b31
1313a6164873
14940926633
1555378e31d
hex3311a0415

13708690453 has 4 divisors (see below), whose sum is σ = 13765573228. Its totient is φ = 13651807680.

The previous prime is 13708690447. The next prime is 13708690481. The reversal of 13708690453 is 35409680731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35409680731 = 304111644091.

It can be written as a sum of positive squares in 2 ways, for example, as 5522421969 + 8186268484 = 74313^2 + 90478^2 .

It is a cyclic number.

It is not a de Polignac number, because 13708690453 - 25 = 13708690421 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 (13708690403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28441026 + ... + 28441507.

It is an arithmetic number, because the mean of its divisors is an integer number (3441393307).

Almost surely, 213708690453 is an apocalyptic number.

It is an amenable number.

13708690453 is a deficient number, since it is larger than the sum of its proper divisors (56882775).

13708690453 is an equidigital number, since it uses as much as digits as its factorization.

13708690453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56882774.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 13708690453 in words is "thirteen billion, seven hundred eight million, six hundred ninety thousand, four hundred fifty-three".

Divisors: 1 241 56882533 13708690453