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1982222 = 21128191
BaseRepresentation
bin111100011111100001110
310201201002122
413203330032
51001412342
6110252542
722564034
oct7437416
93651078
101982222
111134300
127b7152
13545318
14398554
152924d2
hex1e3f0e

1982222 has 12 divisors (see below), whose sum is σ = 3268608. Its totient is φ = 900900.

The previous prime is 1982219. The next prime is 1982263. The reversal of 1982222 is 2222891.

1982222 is a modest number, since divided by 2222 gives 198 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1982191 and 1982200.

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 5 ways as a sum of consecutive naturals, for example, 3854 + ... + 4337.

It is an arithmetic number, because the mean of its divisors is an integer number (272384).

21982222 is an apocalyptic number.

1982222 is a deficient number, since it is larger than the sum of its proper divisors (1286386).

1982222 is a wasteful number, since it uses less digits than its factorization.

1982222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8215 (or 8204 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 1982222 is about 1407.9140598772. The cubic root of 1982222 is about 125.6176787562.

The spelling of 1982222 in words is "one million, nine hundred eighty-two thousand, two hundred twenty-two".

Divisors: 1 2 11 22 121 242 8191 16382 90101 180202 991111 1982222