2155156979 is an odd 10-digits composite number following 2155156978
and preceding 2155156980 . In scientific notation, it is written as 2.155156979 × 10^9.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 2149727976 positive integers (up to 2155156979) that are relatively prime to 2155156979.
2155156979 has 4 divisors, whose sum is 2160585984
The reverse of 2155156979 is 9796515512
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 50
Digital Root 5
Name
two billion one hundred fifty-five million one hundred fifty-six thousand nine hundred seventy-nine
Scientific notation
2.155156979 × 10^9
Engineering notation
2.155156979 × 10^9
Prime Factorization
397 × 5428607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2155156979
Product of the distinct prime numbers
The prime factorization of 2155156979 is 397 × 5428607.
Since it has a total of 2 prime factors.
10 , 6 , 65 , 19 , 875 , 12 , 7222 , 3471 , 84840 , 77468 , 501890 , 993400 , 8795190 , 8621304 , 89373993 , 21986132 , 88268682 , 764311969 , 3737626667 , 2456539175
n×2
4310313958
n×3
6465470937
n×4
8620627916
n×5
10775784895
n÷2
1077578489.5
n÷3
718385659.66667
n÷3
538789244.75
n÷5
431031395.8
n2
4644701604132406441
n3
1.0010061077518E+28
n4
2.157325299143E+37
n5
4.6493746744213E+46
2 √n
46423.668306156
3 √n
1291.6939825085
4 √n
215.46152395766
5 √n
73.56915736659
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
-2155156978
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 2155156979 can be divided by 4 positive divisors.
The sum of these divisors (counting 2155156979) is 1, the average is 0.25.
Base
System
Value
2
Binary
10000000011101010001010111110011
3
Ternary
12120012022022120212
4
Quaternary
2000131101113303
5
Quinary
13403210010404
6
Senary
553504254335
8
Octal
20035212763
10
Decimal
2155156979
12
Duodecimal
5019113ab
16
Hexadecimal
807515f3
20
Vigesimal
1dd9ec8j
36
Base36
zn4hrn
md5
9c63d4d8bf41933342d34a4a4a907079
sha1
99b647797ccd3ab856ea3994bbe9e643a69cbb8d
sha256
c45f88c28d5e9c56b631721b2283e17dbad2d473000d7635e57d45dd82d58bd3
sha512
14922c64c0ac611ef01a62e37d61996c1fa407dd60bd752b767b934c76ac0a7d08abf3613728e2a387688bc48e98c84764e7e2f2ebffbdd7b053ab8ee9c6ddda
ripemd-160
84bdf745680aae28c7fa9ee8b879df659201c875
Diameter
4310313958
Circumference
13541250665.118
Area
1.4591760437659E+19
Volume
4.1930045790823E+28
Surface area
5.8367041750636E+19
Circumference
13541250665.118
Perimeter
8620627916
Area
4644701604132406441
Diagonal
3047852228.7448
Surface area
2.7868209624794E+19
Volume
1.0010061077518E+28
Space diagonal
3732841385.9147
Perimeter
6465470937
Area
2.0112147910885E+18
Altitude
1866420692.9573
Surface area
2.0112147910885E+18
Volume
1.1796970113341E+27
Height
1015950742.9149