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12247079 = 136311493
BaseRepresentation
bin101110101110…
…000000100111
3212001012211112
4232232000213
511113401304
61114255235
7206045525
oct56560047
925035745
1012247079
116a05459
12412751b
1326ca5c0
1418ab315
15111db6e
hexbae027

12247079 has 8 divisors (see below), whose sum is σ = 13218912. Its totient is φ = 11279520.

The previous prime is 12247051. The next prime is 12247087. The reversal of 12247079 is 97074221.

12247079 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-12247079 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 (12247579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7457 + ... + 8949.

It is an arithmetic number, because the mean of its divisors is an integer number (1652364).

Almost surely, 212247079 is an apocalyptic number.

12247079 is a deficient number, since it is larger than the sum of its proper divisors (971833).

12247079 is a wasteful number, since it uses less digits than its factorization.

12247079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 12247079 is about 3499.5826894074. The cubic root of 12247079 is about 230.5034905826.

The spelling of 12247079 in words is "twelve million, two hundred forty-seven thousand, seventy-nine".

Divisors: 1 13 631 1493 8203 19409 942083 12247079