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12070169 = 13199151
BaseRepresentation
bin101110000010…
…110100011001
3211201020011022
4232002310121
511042221134
61110412225
7204410666
oct56026431
924636138
1012070169
1168a4551
124061075
132667c17
141862a6d
1510d652e
hexb82d19

12070169 has 4 divisors (see below), whose sum is σ = 12080640. Its totient is φ = 12059700.

The previous prime is 12070141. The next prime is 12070171. The reversal of 12070169 is 96107021.

12070169 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96107021 = 432235047.

It is a cyclic number.

It is not a de Polignac number, because 12070169 - 216 = 12004633 is a prime.

It is a super-2 number, since 2×120701692 = 291377959377122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12070189) 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 3 ways as a sum of consecutive naturals, for example, 3257 + ... + 5894.

It is an arithmetic number, because the mean of its divisors is an integer number (3020160).

Almost surely, 212070169 is an apocalyptic number.

It is an amenable number.

12070169 is a deficient number, since it is larger than the sum of its proper divisors (10471).

12070169 is an equidigital number, since it uses as much as digits as its factorization.

12070169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10470.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 12070169 is about 3474.2148753351. The cubic root of 12070169 is about 229.3882229481.

The spelling of 12070169 in words is "twelve million, seventy thousand, one hundred sixty-nine".

Divisors: 1 1319 9151 12070169