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1982106 = 232715731
BaseRepresentation
bin111100011111010011010
310201200221100
413203322122
51001411411
6110252230
722563510
oct7437232
93650840
101982106
111134205
127b7076
13545259
143984b0
15292456
hex1e3e9a

1982106 has 24 divisors (see below), whose sum is σ = 4908384. Its totient is φ = 566280.

The previous prime is 1982093. The next prime is 1982111. The reversal of 1982106 is 6012891.

It is a self number, because there is not a number n which added to its sum of digits gives 1982106.

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 11 ways as a sum of consecutive naturals, for example, 7740 + ... + 7991.

It is an arithmetic number, because the mean of its divisors is an integer number (204516).

21982106 is an apocalyptic number.

1982106 is an abundant number, since it is smaller than the sum of its proper divisors (2926278).

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

1982106 is a wasteful number, since it uses less digits than its factorization.

1982106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15746 (or 15743 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1982106 is about 1407.8728635782. The cubic root of 1982106 is about 125.6152283184.

Adding to 1982106 its reverse (6012891), we get a palindrome (7994997).

It can be divided in two parts, 198 and 2106, that added together give a square (2304 = 482).

The spelling of 1982106 in words is "one million, nine hundred eighty-two thousand, one hundred six".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 15731 31462 47193 94386 110117 141579 220234 283158 330351 660702 991053 1982106