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12982790 = 251298279
BaseRepresentation
bin110001100001…
…101000000110
3220102121001002
4301201220012
511310422130
61142133302
7215231462
oct61415006
926377032
1012982790
117368187
124421232
1328c7432
141a1d4a2
151216b45
hexc61a06

12982790 has 8 divisors (see below), whose sum is σ = 23369040. Its totient is φ = 5193112.

The previous prime is 12982789. The next prime is 12982793. The reversal of 12982790 is 9728921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12982793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649130 + ... + 649149.

It is an arithmetic number, because the mean of its divisors is an integer number (2921130).

Almost surely, 212982790 is an apocalyptic number.

12982790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12982790 is a deficient number, since it is larger than the sum of its proper divisors (10386250).

12982790 is a wasteful number, since it uses less digits than its factorization.

12982790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298286.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 12982790 is about 3603.1638874745. The cubic root of 12982790 is about 235.0296627714.

The spelling of 12982790 in words is "twelve million, nine hundred eighty-two thousand, seven hundred ninety".

Divisors: 1 2 5 10 1298279 2596558 6491395 12982790