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1980682 = 21190031
BaseRepresentation
bin111100011100100001010
310201121222121
413203210022
51001340212
6110241454
722556404
oct7434412
93647877
101980682
111133130
127b628a
13544702
14397b74
15291d07
hex1e390a

1980682 has 8 divisors (see below), whose sum is σ = 3241152. Its totient is φ = 900300.

The previous prime is 1980673. The next prime is 1980697. The reversal of 1980682 is 2860891.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44994 + ... + 45037.

It is an arithmetic number, because the mean of its divisors is an integer number (405144).

21980682 is an apocalyptic number.

1980682 is a deficient number, since it is larger than the sum of its proper divisors (1260470).

1980682 is a wasteful number, since it uses less digits than its factorization.

1980682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90044.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1980682 is about 1407.3670452302. The cubic root of 1980682 is about 125.5851392887.

It can be divided in two parts, 1980 and 682, that added together give a palindrome (2662).

The spelling of 1980682 in words is "one million, nine hundred eighty thousand, six hundred eighty-two".

Divisors: 1 2 11 22 90031 180062 990341 1980682