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12071079 = 33647691
BaseRepresentation
bin101110000011…
…000010100111
3211201021102000
4232003002213
511042233304
61110420343
7204413436
oct56030247
924637360
1012071079
1168a51a9
1240616b3
132668467
14186311d
1510d6939
hexb830a7

12071079 has 16 divisors (see below), whose sum is σ = 17936640. Its totient is φ = 8023320.

The previous prime is 12071077. The next prime is 12071083. The reversal of 12071079 is 97017021.

It is not a de Polignac number, because 12071079 - 21 = 12071077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17124 + ... + 17814.

It is an arithmetic number, because the mean of its divisors is an integer number (1121040).

Almost surely, 212071079 is an apocalyptic number.

12071079 is a deficient number, since it is larger than the sum of its proper divisors (5865561).

12071079 is an equidigital number, since it uses as much as digits as its factorization.

12071079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347 (or 1341 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 12071079 is about 3474.3458377082. The cubic root of 12071079 is about 229.3939875191.

The spelling of 12071079 in words is "twelve million, seventy-one thousand, seventy-nine".

Divisors: 1 3 9 27 647 691 1941 2073 5823 6219 17469 18657 447077 1341231 4023693 12071079