Search a number
-
+
12279169 = 715111617
BaseRepresentation
bin101110110101…
…110110000001
3212002211212001
4232311312001
511120413134
61115104001
7206241220
oct56656601
925084761
1012279169
116a27581
124142001
13270c0a6
1418b8cb7
151128414
hexbb5d81

12279169 has 8 divisors (see below), whose sum is σ = 14127488. Its totient is φ = 10454400.

The previous prime is 12279167. The next prime is 12279233. The reversal of 12279169 is 96197221.

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 12279169 - 21 = 12279167 is a prime.

It is a super-2 number, since 2×122791692 = 301555982661122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12279161) 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 7 ways as a sum of consecutive naturals, for example, 4752 + ... + 6865.

It is an arithmetic number, because the mean of its divisors is an integer number (1765936).

Almost surely, 212279169 is an apocalyptic number.

It is an amenable number.

12279169 is a deficient number, since it is larger than the sum of its proper divisors (1848319).

12279169 is a wasteful number, since it uses less digits than its factorization.

12279169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11775.

The product of its digits is 13608, while the sum is 37.

The square root of 12279169 is about 3504.1645223933. The cubic root of 12279169 is about 230.7046380275.

The spelling of 12279169 in words is "twelve million, two hundred seventy-nine thousand, one hundred sixty-nine".

Divisors: 1 7 151 1057 11617 81319 1754167 12279169