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13812437647 = 151154959053
BaseRepresentation
bin11001101110100100…
…10001001010001111
31022122121112112101201
430313102101022033
5211241441001042
610202332250331
7666166532341
oct146722211217
938577475351
1013812437647
115948840928
1228159109a7
1313c17bab38
14950611291
1555c9341b7
hex33749128f

13812437647 has 8 divisors (see below), whose sum is σ = 13913122400. Its totient is φ = 13711874400.

The previous prime is 13812437629. The next prime is 13812437659. The reversal of 13812437647 is 74673421831.

13812437647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13812437647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13812437597 and 13812437606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13812437677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204373 + ... + 263425.

It is an arithmetic number, because the mean of its divisors is an integer number (1739140300).

Almost surely, 213812437647 is an apocalyptic number.

13812437647 is a deficient number, since it is larger than the sum of its proper divisors (100684753).

13812437647 is a wasteful number, since it uses less digits than its factorization.

13812437647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60753.

The product of its digits is 677376, while the sum is 46.

The spelling of 13812437647 in words is "thirteen billion, eight hundred twelve million, four hundred thirty-seven thousand, six hundred forty-seven".

Divisors: 1 151 1549 59053 233899 8917003 91473097 13812437647