155127921 is an odd 9-digits composite number following 155127920
and preceding 155127922 . In scientific notation, it is written as 1.55127921 × 10^8.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 95463312 positive integers (up to 155127921) that are relatively prime to 155127921.
155127921 has 4 divisors, whose sum is 159105600
The reverse of 155127921 is 129721551
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
one hundred fifty-five million one hundred twenty-seven thousand nine hundred twenty-one
Scientific notation
1.55127921 × 10^8
Engineering notation
1.55127921 × 10^6
Prime Factorization
39 × 3977639
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
155127921
Product of the distinct prime numbers
The prime factorization of 155127921 is 39 × 3977639.
Since it has a total of 2 prime factors.
1 , 8 , 58 , 53 , 49 , 157 , 1442 , 3228 , 9622 , 78688 , 344552 , 206782 , 3529943 , 7619998 , 6056732 , 14300701 , 679759175 , 478830661 , 2031751675 , 2595167202
n×2
310255842
n×3
465383763
n×4
620511684
n×5
775639605
n÷2
77563960.5
n÷3
51709307
n÷3
38781980.25
n÷5
31025584.2
n2
24064671873782241
n3
3.733102517327E+24
n4
5.7910843239281E+32
n5
8.9835887150665E+40
2 √n
12455.035969438
3 √n
537.31626934702
4 √n
111.60213245919
5 √n
43.464830909591
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
-155127920
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 155127921 can be divided by 4 positive divisors.
The sum of these divisors (counting 155127921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001001111110001000001110001
3
Ternary
101210220022111120
4
Quaternary
21033301001301
5
Quinary
304203043141
6
Senary
23220532453
8
Octal
1117610161
10
Decimal
155127921
12
Duodecimal
43b51129
16
Hexadecimal
93f1071
20
Vigesimal
289ajg1
36
Base36
2kcxgx
md5
40e3348ab04ca69de4c27f9d3f54238b
sha1
49bf6c8e031db18e68ddaec46fb3eb4e20bd9d56
sha256
a460acb521912f0f05995863013c2e628d5d6eefd2e9ff30ef0e551c532e5fd1
sha512
4056313543233232ad500a068bb55a12c6a7564037b593c05e8b869646b8ec058c7f2fd443e262fc5ff160e1101c0b21d5d83c3d69a841145097ccd507c65d2d
ripemd-160
12ab08bd142593c6a69beb701b515f41aac9b3a5
Diameter
310255842
Circumference
974697473.96052
Area
7.5601396369723E+16
Volume
1.5637183258043E+25
Surface area
3.0240558547889E+17
Circumference
974697473.96052
Perimeter
620511684
Area
24064671873782241
Diagonal
219384009.78094
Surface area
144388031242693446
Volume
3.733102517327E+24
Space diagonal
268689440.84453
Perimeter
465383763
Area
1.0420308588216E+16
Altitude
134344720.42227
Surface area
1.0420308588216E+16
Volume
4.3995035081108E+23
Height
73128003.260314