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12680547 = 311384259
BaseRepresentation
bin110000010111…
…110101100011
3212212020102220
4300113311203
511221234142
61131442123
7212532345
oct60276543
925766386
1012680547
1171810a0
1242b6343
13281c9a9
141981295
1511a72ec
hexc17d63

12680547 has 8 divisors (see below), whose sum is σ = 18444480. Its totient is φ = 7685160.

The previous prime is 12680537. The next prime is 12680557. The reversal of 12680547 is 74508621.

It is an interprime number because it is at equal distance from previous prime (12680537) and next prime (12680557).

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

It is not a de Polignac number, because 12680547 - 210 = 12679523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 384259 = 12680547 / (1 + 2 + 6 + 8 + 0 + 5 + 4 + 7).

It is not an unprimeable number, because it can be changed into a prime (12680537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192097 + ... + 192162.

It is an arithmetic number, because the mean of its divisors is an integer number (2305560).

Almost surely, 212680547 is an apocalyptic number.

12680547 is a deficient number, since it is larger than the sum of its proper divisors (5763933).

12680547 is a wasteful number, since it uses less digits than its factorization.

12680547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384273.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12680547 is about 3560.9755685767. The cubic root of 12680547 is about 233.1914713646.

The spelling of 12680547 in words is "twelve million, six hundred eighty thousand, five hundred forty-seven".

Divisors: 1 3 11 33 384259 1152777 4226849 12680547