155291261 is an odd 9-digits prime number following 155291260
and preceding 155291262 . In scientific notation, it is written as 1.55291261 × 10^8.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 155291260 positive integers (up to 155291261) that are relatively prime to 155291261.
155291261 has 2 divisors, whose sum is 155291262
The reverse of 155291261 is 162192551
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 32
Digital Root 5
Name
one hundred fifty-five million two hundred ninety-one thousand two hundred sixty-one
Scientific notation
1.55291261 × 10^8
Engineering notation
1.55291261 × 10^6
Prime Factorization
155291261
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
155291261
Product of the distinct prime numbers
The prime factorization of 155291261 is 155291261.
Since it has a total of 1 prime factors.
7 , 2 , 81 , 70 , 301 , 496 , 9124 , 5280 , 89110 , 28677 , 394056 , 459718 , 3431035 , 5257205 , 95316212 , 359777 , 231978686 , 545462651 , 4204311274 , 101870507
n×2
310582522
n×3
465873783
n×4
621165044
n×5
776456305
n÷2
77645630.5
n÷3
51763753.666667
n÷3
38822815.25
n÷5
31058252.2
n2
24115375742970121
n3
3.7449071086146E+24
n4
5.8155134722463E+32
n5
9.0309842046762E+40
2 √n
12461.591431274
3 √n
537.50479000599
4 √n
111.63149838318
5 √n
43.473980206728
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
155291262
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
77645631
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
12461.591471397
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999987121
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 155291261 can be divided by 2 positive divisors.
The sum of these divisors (counting 155291261) is 155291262, the average is 77645631.
Base
System
Value
2
Binary
1001010000011000111001111101
3
Ternary
101211012121120012
4
Quaternary
21100120321331
5
Quinary
304223310021
6
Senary
23224233005
8
Octal
1120307175
10
Decimal
155291261
12
Duodecimal
4400b765
16
Hexadecimal
9418e7d
20
Vigesimal
28ab831
36
Base36
2kgfi5
md5
1c30282d2c8baafea86e99cbbeccf345
sha1
6ab8c83fea2ed237dee24428026d0e4c1b416935
sha256
bba1c1e12f049846e573f74545b83126762cbc1d79ff28137a2ae8d8c20ce720
sha512
bbd675f109400fad886147011caae72a39c742cd7ccc3d6e271109fefd3190d84ba39b3a7ba818e5da81f8a41ce41e1fc6426b1ba393a22e078e77af4cd9135e
ripemd-160
2524b97f454417525f36d525696eb72838fe2014
Diameter
310582522
Circumference
975723769.44859
Area
7.5760687272672E+16
Volume
1.56866302144E+25
Surface area
3.0304274909069E+17
Circumference
975723769.44859
Perimeter
621165044
Area
24115375742970121
Diagonal
219615007.42422
Surface area
144692254457820726
Volume
3.7449071086146E+24
Space diagonal
268972354.02344
Perimeter
465873783
Area
1.044226400761E+16
Altitude
134486177.01172
Surface area
1.044226400761E+16
Volume
4.4134153523585E+23
Height
73205002.47474