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13209982 = 259111949
BaseRepresentation
bin110010011001…
…000101111110
3220212010200121
4302121011332
511340204412
61151045154
7220166032
oct62310576
926763617
1013209982
117502945
1245107ba
132976976
141a7c1c2
15125e107
hexc9917e

13209982 has 8 divisors (see below), whose sum is σ = 20151000. Its totient is φ = 6492984.

The previous prime is 13209979. The next prime is 13209983. The reversal of 13209982 is 28990231.

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 (13209983) 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 3 ways as a sum of consecutive naturals, for example, 55857 + ... + 56092.

It is an arithmetic number, because the mean of its divisors is an integer number (2518875).

Almost surely, 213209982 is an apocalyptic number.

13209982 is a deficient number, since it is larger than the sum of its proper divisors (6941018).

13209982 is a wasteful number, since it uses less digits than its factorization.

13209982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112010.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13209982 is about 3634.5538928457. The cubic root of 13209982 is about 236.3927077475.

The spelling of 13209982 in words is "thirteen million, two hundred nine thousand, nine hundred eighty-two".

Divisors: 1 2 59 118 111949 223898 6604991 13209982