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2981384 = 23753239
BaseRepresentation
bin1011010111111000001000
312121110200122
423113320020
51230401014
6143522412
734225040
oct13277010
95543618
102981384
111756a5a
12bb9408
13805043
14578720
153dd58e
hex2d7e08

2981384 has 16 divisors (see below), whose sum is σ = 6388800. Its totient is φ = 1277712.

The previous prime is 2981383. The next prime is 2981387. The reversal of 2981384 is 4831892.

It is a happy number.

2981384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2981383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26564 + ... + 26675.

It is an arithmetic number, because the mean of its divisors is an integer number (399300).

22981384 is an apocalyptic number.

It is an amenable number.

2981384 is an abundant number, since it is smaller than the sum of its proper divisors (3407416).

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

2981384 is a wasteful number, since it uses less digits than its factorization.

2981384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53252 (or 53248 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 2981384 is about 1726.6684684675. The cubic root of 2981384 is about 143.9260165225.

The spelling of 2981384 in words is "two million, nine hundred eighty-one thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 56 53239 106478 212956 372673 425912 745346 1490692 2981384