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13872627647 = 71291945943
BaseRepresentation
bin11001110101101111…
…10111111110111111
31022210210210111112222
430322313313332333
5211402343041042
610212322315555
71000530250364
oct147267677677
938723714488
1013872627647
11597981152a
122831ab8bbb
131401103418
149585dc46b
15562d732d2
hex33adf7fbf

13872627647 has 4 divisors (see below), whose sum is σ = 13874580720. Its totient is φ = 13870674576.

The previous prime is 13872627641. The next prime is 13872627673. The reversal of 13872627647 is 74672627831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13872627647 - 222 = 13868433343 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 (13872627641) 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, 965843 + ... + 980100.

It is an arithmetic number, because the mean of its divisors is an integer number (3468645180).

Almost surely, 213872627647 is an apocalyptic number.

13872627647 is a deficient number, since it is larger than the sum of its proper divisors (1953073).

13872627647 is an equidigital number, since it uses as much as digits as its factorization.

13872627647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953072.

The product of its digits is 4741632, while the sum is 53.

The spelling of 13872627647 in words is "thirteen billion, eight hundred seventy-two million, six hundred twenty-seven thousand, six hundred forty-seven".

Divisors: 1 7129 1945943 13872627647