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13774479841 = 23995741759
BaseRepresentation
bin11001101010000010…
…11110000111100001
31022112222010002002001
430311001132013201
5211202231323331
610154454524001
7665226101233
oct146501360741
938488102061
1013774479841
115929375641
122805066601
1313b698a9b5
14949570253
15559437561
hex33505e1e1

13774479841 has 4 divisors (see below), whose sum is σ = 13780224000. Its totient is φ = 13768735684.

The previous prime is 13774479839. The next prime is 13774479847. The reversal of 13774479841 is 14897447731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14897447731 = 47316966973.

It is a cyclic number.

It is not a de Polignac number, because 13774479841 - 21 = 13774479839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13774479847) 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, 2868481 + ... + 2873278.

It is an arithmetic number, because the mean of its divisors is an integer number (3445056000).

Almost surely, 213774479841 is an apocalyptic number.

It is an amenable number.

13774479841 is a deficient number, since it is larger than the sum of its proper divisors (5744159).

13774479841 is an equidigital number, since it uses as much as digits as its factorization.

13774479841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744158.

The product of its digits is 4741632, while the sum is 55.

The spelling of 13774479841 in words is "thirteen billion, seven hundred seventy-four million, four hundred seventy-nine thousand, eight hundred forty-one".

Divisors: 1 2399 5741759 13774479841