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12423258 = 2322113271
BaseRepresentation
bin101111011001…
…000001011010
3212101011111200
4233121001122
511140021013
61122135030
7210411261
oct57310132
925334450
1012423258
117015861
1241b1476
13275c853
1419155d8
151155e73
hexbd905a

12423258 has 24 divisors (see below), whose sum is σ = 27052896. Its totient is φ = 4120200.

The previous prime is 12423251. The next prime is 12423263. The reversal of 12423258 is 85232421.

12423258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12423251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2163 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (1127204).

Almost surely, 212423258 is an apocalyptic number.

12423258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12423258 is an abundant number, since it is smaller than the sum of its proper divisors (14629638).

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

12423258 is a wasteful number, since it uses less digits than its factorization.

12423258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490 (or 3487 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 12423258 is about 3524.6642393283. The cubic root of 12423258 is about 231.6035266629.

Adding to 12423258 its reverse (85232421), we get a palindrome (97655679).

The spelling of 12423258 in words is "twelve million, four hundred twenty-three thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 9 18 211 422 633 1266 1899 3271 3798 6542 9813 19626 29439 58878 690181 1380362 2070543 4141086 6211629 12423258