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12677247 = 3211128053
BaseRepresentation
bin110000010111…
…000001111111
3212212001220200
4300113001333
511221132442
61131414543
7212516622
oct60270177
925761820
1012677247
117179670
1242b4453
13281b33b
14197ddb9
1511a634c
hexc1707f

12677247 has 12 divisors (see below), whose sum is σ = 19976424. Its totient is φ = 7683120.

The previous prime is 12677219. The next prime is 12677261. The reversal of 12677247 is 74277621.

It is a happy number.

It is not a de Polignac number, because 12677247 - 28 = 12676991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12677207) 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 11 ways as a sum of consecutive naturals, for example, 63928 + ... + 64125.

It is an arithmetic number, because the mean of its divisors is an integer number (1664702).

Almost surely, 212677247 is an apocalyptic number.

12677247 is a deficient number, since it is larger than the sum of its proper divisors (7299177).

12677247 is a wasteful number, since it uses less digits than its factorization.

12677247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128070 (or 128067 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 12677247 is about 3560.5121822569. The cubic root of 12677247 is about 233.1712409382.

The spelling of 12677247 in words is "twelve million, six hundred seventy-seven thousand, two hundred forty-seven".

Divisors: 1 3 9 11 33 99 128053 384159 1152477 1408583 4225749 12677247