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2981704 = 2311311093
BaseRepresentation
bin1011010111111101001000
312121111010111
423113331020
51230403304
6143524104
734226005
oct13277510
95544114
102981704
111757220
12bb9634
1380522b
145788ac
153dd704
hex2d7f48

2981704 has 32 divisors (see below), whose sum is σ = 6301440. Its totient is φ = 1310400.

The previous prime is 2981677. The next prime is 2981707. The reversal of 2981704 is 4071892.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (2981707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2182 + ... + 3274.

It is an arithmetic number, because the mean of its divisors is an integer number (196920).

22981704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2981704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3150720).

2981704 is an abundant number, since it is smaller than the sum of its proper divisors (3319736).

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

2981704 is a wasteful number, since it uses less digits than its factorization.

2981704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2981704 is about 1726.7611299772. The cubic root of 2981704 is about 143.9311656610.

It can be divided in two parts, 298 and 1704, that added together give a palindrome (2002).

The spelling of 2981704 in words is "two million, nine hundred eighty-one thousand, seven hundred four".

Divisors: 1 2 4 8 11 22 31 44 62 88 124 248 341 682 1093 1364 2186 2728 4372 8744 12023 24046 33883 48092 67766 96184 135532 271064 372713 745426 1490852 2981704