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13247376061 = 19697230319
BaseRepresentation
bin11000101011001101…
…01110101010111101
31021012020021102121211
430111212232222331
5204112312013221
610030305124421
7646165560433
oct142546565275
937166242554
1013247376061
115688886787
122698629711
131331705c7a
148d9560d53
155280186e1
hex3159aeabd

13247376061 has 4 divisors (see below), whose sum is σ = 13944606400. Its totient is φ = 12550145724.

The previous prime is 13247376049. The next prime is 13247376083. The reversal of 13247376061 is 16067374231.

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.

It is a cyclic number.

It is not a de Polignac number, because 13247376061 - 219 = 13246851773 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 (13247376091) 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, 348615141 + ... + 348615178.

It is an arithmetic number, because the mean of its divisors is an integer number (3486151600).

Almost surely, 213247376061 is an apocalyptic number.

It is an amenable number.

13247376061 is a deficient number, since it is larger than the sum of its proper divisors (697230339).

13247376061 is an equidigital number, since it uses as much as digits as its factorization.

13247376061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697230338.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 13247376061 in words is "thirteen billion, two hundred forty-seven million, three hundred seventy-six thousand, sixty-one".

Divisors: 1 19 697230319 13247376061