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13005641017 = 31419536807
BaseRepresentation
bin11000001110011001…
…00101010100111001
31020120101102000111001
430013030211110321
5203113421003032
65550312005001
7640202060515
oct140714452471
936511360431
1013005641017
115574388656
12262b690761
1312c35c8495
148b53d7145
15511bb83e7
hex307325539

13005641017 has 4 divisors (see below), whose sum is σ = 13425177856. Its totient is φ = 12586104180.

The previous prime is 13005640943. The next prime is 13005641021. The reversal of 13005641017 is 71014650031.

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: 71014650031 = 135462665387.

It is a cyclic number.

It is not a de Polignac number, because 13005641017 - 223 = 12997252409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13005641317) 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, 209768373 + ... + 209768434.

It is an arithmetic number, because the mean of its divisors is an integer number (3356294464).

Almost surely, 213005641017 is an apocalyptic number.

It is an amenable number.

13005641017 is a deficient number, since it is larger than the sum of its proper divisors (419536839).

13005641017 is an equidigital number, since it uses as much as digits as its factorization.

13005641017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419536838.

The product of its (nonzero) digits is 2520, while the sum is 28.

The spelling of 13005641017 in words is "thirteen billion, five million, six hundred forty-one thousand, seventeen".

Divisors: 1 31 419536807 13005641017