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2981982 = 23496997
BaseRepresentation
bin1011011000000001011110
312121111111210
423120001132
51230410412
6143525250
734226553
oct13300136
95544453
102981982
111757453
12bb9826
138053b3
14578a2a
153dd83c
hex2d805e

2981982 has 8 divisors (see below), whose sum is σ = 5963976. Its totient is φ = 993992.

The previous prime is 2981981. The next prime is 2981999. The reversal of 2981982 is 2891892.

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

2981982 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2981982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248493 + ... + 248504.

It is an arithmetic number, because the mean of its divisors is an integer number (745497).

22981982 is an apocalyptic number.

2981982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2981982 is a wasteful number, since it uses less digits than its factorization.

2981982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497002.

The product of its digits is 20736, while the sum is 39.

The square root of 2981982 is about 1726.8416256276. The cubic root of 2981982 is about 143.9356386760.

The spelling of 2981982 in words is "two million, nine hundred eighty-one thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 496997 993994 1490991 2981982