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1982230 = 25198223
BaseRepresentation
bin111100011111100010110
310201201002221
413203330112
51001412410
6110252554
722564045
oct7437426
93651087
101982230
111134308
127b715a
13545323
1439855c
152924da
hex1e3f16

1982230 has 8 divisors (see below), whose sum is σ = 3568032. Its totient is φ = 792888.

The previous prime is 1982219. The next prime is 1982263. The reversal of 1982230 is 322891.

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

It is a junction number, because it is equal to n+sod(n) for n = 1982195 and 1982204.

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 3 ways as a sum of consecutive naturals, for example, 99102 + ... + 99121.

It is an arithmetic number, because the mean of its divisors is an integer number (446004).

21982230 is an apocalyptic number.

1982230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1982230 is a deficient number, since it is larger than the sum of its proper divisors (1585802).

1982230 is a wasteful number, since it uses less digits than its factorization.

1982230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198230.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1982230 is about 1407.9169009569. The cubic root of 1982230 is about 125.6178477484.

The spelling of 1982230 in words is "one million, nine hundred eighty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 198223 396446 991115 1982230