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2981682 = 232112372
BaseRepresentation
bin1011010111111100110010
312121111002200
423113330302
51230403212
6143524030
734225644
oct13277462
95544080
102981682
111757200
12bb9616
13805212
14578894
153dd6dc
hex2d7f32

2981682 has 54 divisors (see below), whose sum is σ = 7298109. Its totient is φ = 879120.

The previous prime is 2981677. The next prime is 2981707. The reversal of 2981682 is 2861892.

It can be written as a sum of positive squares in 2 ways, for example, as 2405601 + 576081 = 1551^2 + 759^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=1221.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 80568 + ... + 80604.

22981682 is an apocalyptic number.

2981682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2981682

2981682 is an abundant number, since it is smaller than the sum of its proper divisors (4316427).

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

2981682 is a wasteful number, since it uses less digits than its factorization.

2981682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 53 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2981682 is about 1726.7547596575. The cubic root of 2981682 is about 143.9308116695.

It can be divided in two parts, 2981 and 682, that added together give a palindrome (3663).

The spelling of 2981682 in words is "two million, nine hundred eighty-one thousand, six hundred eighty-two".

Divisors: 1 2 3 6 9 11 18 22 33 37 66 74 99 111 121 198 222 242 333 363 407 666 726 814 1089 1221 1369 2178 2442 2738 3663 4107 4477 7326 8214 8954 12321 13431 15059 24642 26862 30118 40293 45177 80586 90354 135531 165649 271062 331298 496947 993894 1490841 2981682