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12475986 = 2310719433
BaseRepresentation
bin101111100101…
…111001010010
3212110211211120
4233211321102
511143212421
61123223110
7211021065
oct57457122
925424746
1012475986
117051436
124217a96
13277a853
14192a8dc
1511668c6
hexbe5e52

12475986 has 16 divisors (see below), whose sum is σ = 25186464. Its totient is φ = 4119584.

The previous prime is 12475973. The next prime is 12475987. The reversal of 12475986 is 68957421.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12475987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9075 + ... + 10358.

It is an arithmetic number, because the mean of its divisors is an integer number (1574154).

Almost surely, 212475986 is an apocalyptic number.

12475986 is an abundant number, since it is smaller than the sum of its proper divisors (12710478).

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

12475986 is a wasteful number, since it uses less digits than its factorization.

12475986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19545.

The product of its digits is 120960, while the sum is 42.

The square root of 12475986 is about 3532.1361808401. The cubic root of 12475986 is about 231.9307289226.

The spelling of 12475986 in words is "twelve million, four hundred seventy-five thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 107 214 321 642 19433 38866 58299 116598 2079331 4158662 6237993 12475986