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12269868 = 2231378653
BaseRepresentation
bin101110110011…
…100100101100
3212002101002120
4232303210230
511120113433
61114552540
7206202132
oct56634454
925071076
1012269868
116a20596
124138750
132707aa0
1418b5752
1511257b3
hexbb392c

12269868 has 24 divisors (see below), whose sum is σ = 30832368. Its totient is φ = 3775296.

The previous prime is 12269863. The next prime is 12269891. The reversal of 12269868 is 86896221.

It is not an unprimeable number, because it can be changed into a prime (12269863) 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, 39171 + ... + 39482.

It is an arithmetic number, because the mean of its divisors is an integer number (1284682).

Almost surely, 212269868 is an apocalyptic number.

It is an amenable number.

12269868 is an abundant number, since it is smaller than the sum of its proper divisors (18562500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12269868 is a wasteful number, since it uses less digits than its factorization.

12269868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78673 (or 78671 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 12269868 is about 3502.8371358086. The cubic root of 12269868 is about 230.6463733395.

The spelling of 12269868 in words is "twelve million, two hundred sixty-nine thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 78653 157306 235959 314612 471918 943836 1022489 2044978 3067467 4089956 6134934 12269868