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12090169 = 713132859
BaseRepresentation
bin101110000111…
…101100111001
3211202020121001
4232013230321
511043341134
61111045001
7204523210
oct56075471
924666531
1012090169
116908583
124070761
132674060
14186a077
1510dc414
hexb87b39

12090169 has 8 divisors (see below), whose sum is σ = 14880320. Its totient is φ = 9565776.

The previous prime is 12090167. The next prime is 12090173. The reversal of 12090169 is 96109021.

12090169 is digitally balanced in base 3, 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 not a de Polignac number, because 12090169 - 21 = 12090167 is a prime.

It is a super-2 number, since 2×120901692 = 292344372897122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12090167) 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, 66339 + ... + 66520.

It is an arithmetic number, because the mean of its divisors is an integer number (1860040).

Almost surely, 212090169 is an apocalyptic number.

12090169 is the 2008-th hex number.

It is an amenable number.

12090169 is a deficient number, since it is larger than the sum of its proper divisors (2790151).

12090169 is a wasteful number, since it uses less digits than its factorization.

12090169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132879.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 12090169 is about 3477.0920321441. The cubic root of 12090169 is about 229.5148500856.

The spelling of 12090169 in words is "twelve million, ninety thousand, one hundred sixty-nine".

Divisors: 1 7 13 91 132859 930013 1727167 12090169