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1996982 = 21389863
BaseRepresentation
bin111100111100010110110
310202110100022
413213202312
51002400412
6110445142
722655051
oct7474266
93673308
101996982
1111443a9
128037b2
1354bc60
1439da98
15296a72
hex1e78b6

1996982 has 16 divisors (see below), whose sum is σ = 3265920. Its totient is φ = 910272.

The previous prime is 1996979. The next prime is 1997003. The reversal of 1996982 is 2896991.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1883 + ... + 2745.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

21996982 is an apocalyptic number.

1996982 is a deficient number, since it is larger than the sum of its proper divisors (1268938).

1996982 is a wasteful number, since it uses less digits than its factorization.

1996982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its digits is 69984, while the sum is 44.

The square root of 1996982 is about 1413.1461354014. The cubic root of 1996982 is about 125.9286990568.

Subtracting 1996982 from its reverse (2896991), we obtain a palindrome (900009).

The spelling of 1996982 in words is "one million, nine hundred ninety-six thousand, nine hundred eighty-two".

Divisors: 1 2 13 26 89 178 863 1157 1726 2314 11219 22438 76807 153614 998491 1996982