155806989 is an odd 9-digits composite number following 155806988
and preceding 155806990 . In scientific notation, it is written as 1.55806989 × 10^8.
The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors.
There are 90240768 positive integers (up to 155806989) that are relatively prime to 155806989.
155806989 has 4 divisors, whose sum is 156042656
The reverse of 155806989 is 989608551
Previous prime number is 663
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 51
Digital Root 6
Name
one hundred fifty-five million eight hundred six thousand nine hundred eighty-nine
Scientific notation
1.55806989 × 10^8
Engineering notation
1.55806989 × 10^6
Prime Factorization
663 × 235003
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
155806989
Product of the distinct prime numbers
The prime factorization of 155806989 is 663 × 235003.
Since it has a total of 2 prime factors.
9 , 4 , 67 , 96 , 728 , 784 , 6933 , 5869 , 51588 , 72144 , 808243 , 704898 , 2830227 , 1218626 , 24457588 , 56031474 , 815139792 , 386737705 , 1977309853 , 4175147908
n×2
311613978
n×3
467420967
n×4
623227956
n×5
779034945
n÷2
77903494.5
n÷3
51935663
n÷3
38951747.25
n÷5
31161397.8
n2
24275817821246121
n3
3.7823420802409E+24
n4
5.8931533089033E+32
n5
9.1819447277561E+40
2 √n
12482.266981602
3 √n
538.09915692388
4 √n
111.7240662597
5 √n
43.502817662071
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
-155806988
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 155806989 can be divided by 4 positive divisors.
The sum of these divisors (counting 155806989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010010010110110100001101
3
Ternary
101212011211000020
4
Quaternary
21102112310031
5
Quinary
304341310424
6
Senary
23243252353
8
Octal
1122266415
10
Decimal
155806989
12
Duodecimal
4421a0b9
16
Hexadecimal
9496d0d
20
Vigesimal
28dfh99
36
Base36
2krhfx
md5
8e42d227c0389d8238f296a942ed76f5
sha1
4e26ac00ef7f44ea10e8fecbbbff94a030a50683
sha256
33196c8bd53d5669af20dc16f60a63172910b7a6894a7e3453fe8b47371598f6
sha512
b24534298a4c3ee2e737ab058de76c52d42ef39c3d86296f136dbc741d6da22e2ed3397a62022699b477fadf4b7eda2814eeaecb1b15ee707c0aaf6ca9422828
ripemd-160
15affdabac43997c434bab4690a4a62301eb3bfc
Diameter
311613978
Circumference
978964184.04069
Area
7.6264730927111E+16
Volume
1.5843437456864E+25
Surface area
3.0505892370844E+17
Circumference
978964184.04069
Perimeter
623227956
Area
24275817821246121
Diagonal
220344356.95632
Surface area
145654906927476726
Volume
3.7823420802409E+24
Space diagonal
269865621.12233
Perimeter
467420967
Area
1.0511737465421E+16
Altitude
134932810.56116
Surface area
1.0511737465421E+16
Volume
4.4575328895093E+23
Height
73448118.985439