2154989 is an odd 7-digits composite number following 2154988
and preceding 2154990 . In scientific notation, it is written as 2.154989 × 10^6.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 2147040 positive integers (up to 2154989) that are relatively prime to 2154989.
2154989 has 4 divisors, whose sum is 2162940
The reverse of 2154989 is 9894512
Previous prime number is 281
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 38
Digital Root 2
Name
two million one hundred fifty-four thousand nine hundred eighty-nine
Scientific notation
2.154989 × 10^6
Engineering notation
2.154989 × 10^6
Prime Factorization
281 × 7669
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2154989
Product of the distinct prime numbers
The prime factorization of 2154989 is 281 × 7669.
Since it has a total of 2 prime factors.
4 , 3 , 70 , 87 , 308 , 377 , 5536 , 2751 , 76456 , 6727 , 86550 , 290233 , 2571960 , 5303316 , 76872471 , 17383288 , 65129343 , 411303424 , 2757485389 , 8038359781
n×2
4309978
n×3
6464967
n×4
8619956
n×5
10774945
n÷2
1077494.5
n÷3
718329.66666667
n÷3
538747.25
n÷5
430997.8
n2
4643977590121
n3
1.0007720622957E+19
n4
2.1566527857546E+25
n5
4.6475630301205E+31
2 √n
1467.9880789707
3 √n
129.16604222152
4 √n
38.314332552854
5 √n
18.479448735153
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2154988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2154989 can be divided by 4 positive divisors.
The sum of these divisors (counting 2154989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000001110000111101101
3
Ternary
11001111002102
4
Quaternary
20032013231
5
Quinary
1022424424
6
Senary
114104445
8
Octal
10160755
10
Decimal
2154989
12
Duodecimal
87b125
16
Hexadecimal
20e1ed
20
Vigesimal
d9799
36
Base36
1a6st
md5
dacccc19e0bd2b000826f30d83d00796
sha1
bfa5c27f5496ef35280c120508c09087c495c1f4
sha256
9ece3bfadf27a8e7a36ad807847be5fc39937ea66dc79a9f769f43551d7961ed
sha512
55cee802046e8786d25100095a23e87c450a53e0bec26b0d4530e31c752478089c8b3c8354e8ca5614685cfabad9e41907de99cb7640789fa8d3126410275ea2
ripemd-160
e96ce98209bfefa178adfb60cc9037c71b4e9608
Diameter
4309978
Circumference
13540195.221934
Area
14589485880560
Volume
4.1920242117682E+19
Surface area
58357943522239
Circumference
13540195.221934
Perimeter
8619956
Area
4643977590121
Diagonal
3047614.6705648
Surface area
27863865540726
Volume
1.0007720622957E+19
Space diagonal
3732550.437752
Perimeter
6464967
Area
2010901283825.2
Altitude
1866275.218876
Surface area
2010901283825.2
Volume
1.1794211861189E+18
Height
1015871.5568549