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13276647379 = 19966716821
BaseRepresentation
bin11000101110101100…
…11000111111010011
31021021021100120022201
430113112120333103
5204142310204004
610033232344031
7650002432522
oct142726307723
937237316281
1013276647379
1156a3359756
1226a63a5017
1313377b4388
148dd3c04b9
1552a89b6a4
hex317598fd3

13276647379 has 4 divisors (see below), whose sum is σ = 13343364400. Its totient is φ = 13209930360.

The previous prime is 13276647311. The next prime is 13276647389. The reversal of 13276647379 is 97374667231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97374667231 = 372631747763.

It is a cyclic number.

It is not a de Polignac number, because 13276647379 - 211 = 13276645331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13276647389) 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, 33358212 + ... + 33358609.

It is an arithmetic number, because the mean of its divisors is an integer number (3335841100).

Almost surely, 213276647379 is an apocalyptic number.

13276647379 is a deficient number, since it is larger than the sum of its proper divisors (66717021).

13276647379 is an equidigital number, since it uses as much as digits as its factorization.

13276647379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66717020.

The product of its digits is 8001504, while the sum is 55.

The spelling of 13276647379 in words is "thirteen billion, two hundred seventy-six million, six hundred forty-seven thousand, three hundred seventy-nine".

Divisors: 1 199 66716821 13276647379