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12966730 = 257712609
BaseRepresentation
bin110001011101…
…101101001010
3220101210000021
4301131231022
511304413410
61141531054
7215133610
oct61355512
926353007
1012966730
117357107
124413a8a
1328c002a
141a176b0
151211eda
hexc5db4a

12966730 has 32 divisors (see below), whose sum is σ = 27060480. Its totient is φ = 4381440.

The previous prime is 12966703. The next prime is 12966731. The reversal of 12966730 is 3766921.

It is not an unprimeable number, because it can be changed into a prime (12966731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3666 + ... + 6274.

It is an arithmetic number, because the mean of its divisors is an integer number (845640).

Almost surely, 212966730 is an apocalyptic number.

12966730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12966730 is an abundant number, since it is smaller than the sum of its proper divisors (14093750).

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

12966730 is a wasteful number, since it uses less digits than its factorization.

12966730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 12966730 is about 3600.9346009057. The cubic root of 12966730 is about 234.9327104762.

The spelling of 12966730 in words is "twelve million, nine hundred sixty-six thousand, seven hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 71 142 355 497 710 994 2485 2609 4970 5218 13045 18263 26090 36526 91315 182630 185239 370478 926195 1296673 1852390 2593346 6483365 12966730