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1331982 = 23273999
BaseRepresentation
bin101000101001100001110
32111200010200
411011030032
5320110412
644314330
714215221
oct5051416
92450120
101331982
1182a813
125429a6
13378372
142695b8
151b49dc
hex14530e

1331982 has 12 divisors (see below), whose sum is σ = 2886000. Its totient is φ = 443988.

The previous prime is 1331969. The next prime is 1331987. The reversal of 1331982 is 2891331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36982 + ... + 37017.

It is an arithmetic number, because the mean of its divisors is an integer number (240500).

21331982 is an apocalyptic number.

1331982 is an abundant number, since it is smaller than the sum of its proper divisors (1554018).

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

1331982 is a wasteful number, since it uses less digits than its factorization.

1331982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74007 (or 74004 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1331982 is about 1154.1152455453. The cubic root of 1331982 is about 110.0270456913.

The spelling of 1331982 in words is "one million, three hundred thirty-one thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 9 18 73999 147998 221997 443994 665991 1331982