2687949 is an odd 7-digits composite number following 2687948
and preceding 2687950 . In scientific notation, it is written as 2.687949 × 10^6.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 1542240 positive integers (up to 2687949) that are relatively prime to 2687949.
2687949 has 16 divisors, whose sum is 3432000
The reverse of 2687949 is 9497862
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 45
Digital Root 9
Name
two million six hundred eighty-seven thousand nine hundred forty-nine
Scientific notation
2.687949 × 10^6
Engineering notation
2.687949 × 10^6
Prime Factorization
9 × 11 × 19 × 1429
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2687949
Product of the distinct prime numbers
The prime factorization of 2687949 is 9 × 11 × 19 × 1429.
Since it has a total of 4 prime factors.
8 , 9 , 89 , 91 , 722 , 292 , 4874 , 6946 , 6973 , 28335 , 399236 , 3123 , 4950887 , 9894637 , 38675586 , 1956642 , 654379595 , 20367888 , 6279467055 , 5682006674
n×2
5375898
n×3
8063847
n×4
10751796
n×5
13439745
n÷2
1343974.5
n÷3
895983
n÷3
671987.25
n÷5
537589.8
n2
7225069826601
n3
1.9420619215342E+19
n4
5.220163399926E+25
n5
1.4031532990668E+32
2 √n
1639.4965690723
3 √n
139.04018643792
4 √n
40.490697315215
5 √n
19.314532685562
1 , 9 , 11 , 19 , 99 , 171 , 209 , 1429 , 1881 , 12861 , 15719 , 27151 , 141471 , 244359 , 298661 , 2687949
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2687948
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2687949 can be divided by 16 positive divisors.
The sum of these divisors (counting 2687949) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010000001111001101
3
Ternary
12001120011200
4
Quaternary
22100033031
5
Quinary
1142003244
6
Senary
133340113
8
Octal
12201715
10
Decimal
2687949
12
Duodecimal
a97639
16
Hexadecimal
2903cd
20
Vigesimal
gfjh9
36
Base36
1lm19
md5
84e30793423da4d93973a62aa1ec842e
sha1
bbad3465a0b25ea6524d2664e302c11558655b17
sha256
d94c69782ae57ce988c77c24b7bdd0ebdd27e347497e81190533f06fa6ff7190
sha512
0f0016c67c95a23b1adf37172e537ccae7e851d8f13383ea4856c3100351bc92c2e49391f3dabc2ce2eb0ed2fa37b097413a01e5f0b1573d676df13d12126f40
ripemd-160
ad2b2d88d7edf46b19865f9c893c6f032ecf4cca
Diameter
5375898
Circumference
16888881.663248
Area
22698226288923
Volume
8.1348899540112E+19
Surface area
90792905155692
Circumference
16888881.663248
Perimeter
10751796
Area
7225069826601
Diagonal
3801333.9307672
Surface area
43350418959606
Volume
1.9420619215342E+19
Space diagonal
4655664.236154
Perimeter
8063847
Area
3128547006976.4
Altitude
2327832.118077
Surface area
3128547006976.4
Volume
2.2887419236684E+18
Height
1267111.3102557