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12339530 = 257409431
BaseRepresentation
bin101111000100…
…100101001010
3212012220122122
4233010211022
511124331110
61120251242
7206612210
oct57044512
925186578
1012339530
116a68965
124170b22
1327306c8
1418d2cb0
15113b255
hexbc494a

12339530 has 32 divisors (see below), whose sum is σ = 25505280. Its totient is φ = 4210560.

The previous prime is 12339517. The next prime is 12339533. The reversal of 12339530 is 3593321.

It is a self number, because there is not a number n which added to its sum of digits gives 12339530.

It is not an unprimeable number, because it can be changed into a prime (12339533) 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 15 ways as a sum of consecutive naturals, for example, 28415 + ... + 28845.

It is an arithmetic number, because the mean of its divisors is an integer number (797040).

Almost surely, 212339530 is an apocalyptic number.

12339530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12339530 is an abundant number, since it is smaller than the sum of its proper divisors (13165750).

12339530 is a wasteful number, since it uses less digits than its factorization.

12339530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 12339530 is about 3512.7667158523. The cubic root of 12339530 is about 231.0820470279.

The spelling of 12339530 in words is "twelve million, three hundred thirty-nine thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 409 431 818 862 2045 2155 2863 3017 4090 4310 5726 6034 14315 15085 28630 30170 176279 352558 881395 1233953 1762790 2467906 6169765 12339530