2991985 is an odd 7-digits composite number following 2991984
and preceding 2991986 . In scientific notation, it is written as 2.991985 × 10^6.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 2379504 positive integers (up to 2991985) that are relatively prime to 2991985.
2991985 has 8 divisors, whose sum is 3611520
The reverse of 2991985 is 5891992
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 43
Digital Root 7
Name
two million nine hundred ninety-one thousand nine hundred eighty-five
Scientific notation
2.991985 × 10^6
Engineering notation
2.991985 × 10^6
Prime Factorization
5 × 179 × 3343
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2991985
Product of the distinct prime numbers
The prime factorization of 2991985 is 5 × 179 × 3343.
Since it has a total of 3 prime factors.
8 , 10 , 94 , 35 , 307 , 7 , 9862 , 8256 , 48197 , 38951 , 748372 , 420549 , 9184809 , 3371985 , 98647603 , 11455065 , 224880626 , 425085811 , 8530777837 , 9793978981
n×2
5983970
n×3
8975955
n×4
11967940
n×5
14959925
n÷2
1495992.5
n÷3
997328.33333333
n÷3
747996.25
n÷5
598397
n2
8951974240225
n3
2.678417264714E+19
n4
8.0137842797652E+25
n5
2.3977122358293E+32
2 √n
1729.7355289176
3 √n
144.09640214067
4 √n
41.590089311249
5 √n
19.73294395346
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2991984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2991985 can be divided by 8 positive divisors.
The sum of these divisors (counting 2991985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1011011010011101110001
3
Ternary
12122000020021
4
Quaternary
23122131301
5
Quinary
1231220420
6
Senary
144043441
8
Octal
13323561
10
Decimal
2991985
12
Duodecimal
1003581
16
Hexadecimal
2da771
20
Vigesimal
idjj5
36
Base36
1s4mp
md5
1bcf122bed1049bd5c5a9893c814d706
sha1
9e249467a83ff994147f7870f1cd7ed5664d9087
sha256
09fe69f08a395132483cb6e542edbc82d660cb89caa985ba874a138c573b4a21
sha512
6319c9a31aeffbd4fc7cf53f90820912716ff8d9b92824e37ff5aab6c8ef9c036e0c0e7019a8e202fd0935e709f7dede4c5cd83449bab19e326a9dcb007f4151
ripemd-160
179cf5ee5eb83b6db731bfeb88d32d1867c731e7
Diameter
5983970
Circumference
18799196.191302
Area
28123456508216
Volume
1.1219328002765E+20
Surface area
1.1249382603286E+14
Circumference
18799196.191302
Perimeter
11967940
Area
8951974240225
Diagonal
4231305.7654169
Surface area
53711845441350
Volume
2.678417264714E+19
Space diagonal
5182270.035484
Perimeter
8975955
Area
3876318553029.4
Altitude
2591135.017742
Surface area
3876318553029.4
Volume
3.1565450178773E+18
Height
1410435.255139