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12392970 = 235439941
BaseRepresentation
bin101111010001…
…101000001010
3212022121221220
4233101220022
511133033340
61121342510
7210224052
oct57215012
925277856
1012392970
116aa5027
124197a36
13274bb25
141908562
15114bed0
hexbd1a0a

12392970 has 32 divisors (see below), whose sum is σ = 29842560. Its totient is φ = 3293760.

The previous prime is 12392953. The next prime is 12392981. The reversal of 12392970 is 7929321.

It is a Curzon number.

It is an unprimeable number.

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, 12700 + ... + 13640.

It is an arithmetic number, because the mean of its divisors is an integer number (932580).

Almost surely, 212392970 is an apocalyptic number.

12392970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12392970 is an abundant number, since it is smaller than the sum of its proper divisors (17449590).

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

12392970 is a wasteful number, since it uses less digits than its factorization.

12392970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 12392970 is about 3520.3650378902. The cubic root of 12392970 is about 231.4151564284.

The spelling of 12392970 in words is "twelve million, three hundred ninety-two thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 439 878 941 1317 1882 2195 2634 2823 4390 4705 5646 6585 9410 13170 14115 28230 413099 826198 1239297 2065495 2478594 4130990 6196485 12392970