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1982130 = 23566071
BaseRepresentation
bin111100011111010110010
310201200222020
413203322302
51001412010
6110252310
722563543
oct7437262
93650866
101982130
111134227
127b7096
13545277
143984ca
15292470
hex1e3eb2

1982130 has 16 divisors (see below), whose sum is σ = 4757184. Its totient is φ = 528560.

The previous prime is 1982129. The next prime is 1982153. The reversal of 1982130 is 312891.

It is a self number, because there is not a number n which added to its sum of digits gives 1982130.

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, 33006 + ... + 33065.

It is an arithmetic number, because the mean of its divisors is an integer number (297324).

21982130 is an apocalyptic number.

1982130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1982130 is an abundant number, since it is smaller than the sum of its proper divisors (2775054).

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

1982130 is a wasteful number, since it uses less digits than its factorization.

1982130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66081.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1982130 is about 1407.8813870493. The cubic root of 1982130 is about 125.6157353134.

It can be divided in two parts, 1982 and 130, that added together give a palindrome (2112).

The spelling of 1982130 in words is "one million, nine hundred eighty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 66071 132142 198213 330355 396426 660710 991065 1982130