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13696421759 = 25247542497
BaseRepresentation
bin11001100000101111…
…01100111101111111
31022100112020022111222
430300113230331333
5211022240444014
610143025503555
7663260443526
oct146027547577
938315208458
1013696421759
115899300429
1227a2aa1bbb
1313a375a497
1493d0514bd
1555266908e
hex3305ecf7f

13696421759 has 4 divisors (see below), whose sum is σ = 13696989504. Its totient is φ = 13695854016.

The previous prime is 13696421743. The next prime is 13696421771. The reversal of 13696421759 is 95712469631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95712469631 = 337284013263.

It is a cyclic number.

It is not a de Polignac number, because 13696421759 - 24 = 13696421743 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 13696421759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13696421659) 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, 246002 + ... + 296495.

It is an arithmetic number, because the mean of its divisors is an integer number (3424247376).

Almost surely, 213696421759 is an apocalyptic number.

13696421759 is a deficient number, since it is larger than the sum of its proper divisors (567745).

13696421759 is an equidigital number, since it uses as much as digits as its factorization.

13696421759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567744.

The product of its digits is 2449440, while the sum is 53.

The spelling of 13696421759 in words is "thirteen billion, six hundred ninety-six million, four hundred twenty-one thousand, seven hundred fifty-nine".

Divisors: 1 25247 542497 13696421759