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12108530 = 257414219
BaseRepresentation
bin101110001100…
…001011110010
3211210011210002
4232030023302
511044433110
61111310002
7204630560
oct56141362
924704702
1012108530
116920355
12407b302
13267c515
141872a30
1510e2aa5
hexb8c2f2

12108530 has 32 divisors (see below), whose sum is σ = 25522560. Its totient is φ = 4049280.

The previous prime is 12108521. The next prime is 12108541. The reversal of 12108530 is 3580121.

12108530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761 + ... + 4979.

It is an arithmetic number, because the mean of its divisors is an integer number (797580).

Almost surely, 212108530 is an apocalyptic number.

12108530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12108530 is an abundant number, since it is smaller than the sum of its proper divisors (13414030).

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

12108530 is a wasteful number, since it uses less digits than its factorization.

12108530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 12108530 is about 3479.7313114664. The cubic root of 12108530 is about 229.6309772374.

Adding to 12108530 its reverse (3580121), we get a palindrome (15688651).

The spelling of 12108530 in words is "twelve million, one hundred eight thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 41 70 82 205 287 410 574 1435 2870 4219 8438 21095 29533 42190 59066 147665 172979 295330 345958 864895 1210853 1729790 2421706 6054265 12108530