155805213 is an odd 9-digits composite number following 155805212
and preceding 155805214 . In scientific notation, it is written as 1.55805213 × 10^8.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 101910224 positive integers (up to 155805213) that are relatively prime to 155805213.
155805213 has 8 divisors, whose sum is 211660128
The reverse of 155805213 is 312508551
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 30
Digital Root 3
Name
one hundred fifty-five million eight hundred five thousand two hundred thirteen
Scientific notation
1.55805213 × 10^8
Engineering notation
1.55805213 × 10^6
Prime Factorization
3 × 53 × 979907
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
155805213
Product of the distinct prime numbers
The prime factorization of 155805213 is 3 × 53 × 979907.
Since it has a total of 3 prime factors.
4 , 4 , 78 , 25 , 681 , 464 , 18 , 5476 , 7475 , 71321 , 586994 , 355470 , 2428336 , 1789813 , 81317983 , 32728097 , 988416101 , 890723979 , 1370621604 , 6114844495
n×2
311610426
n×3
467415639
n×4
623220852
n×5
779026065
n÷2
77902606.5
n÷3
51935071
n÷3
38951303.25
n÷5
31161042.6
n2
24275264397975369
n3
3.7822127401579E+24
n4
5.8928846159161E+32
n5
9.1814214276723E+40
2 √n
12482.195840476
3 √n
538.09711236918
4 √n
111.72374788055
5 √n
43.502718486345
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-155805212
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 155805213 can be divided by 8 positive divisors.
The sum of these divisors (counting 155805213) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001010010010110011000011101
3
Ternary
101212011201120110
4
Quaternary
21102112120131
5
Quinary
304341231323
6
Senary
23243240233
8
Octal
1122263035
10
Decimal
155805213
12
Duodecimal
44219079
16
Hexadecimal
949661d
20
Vigesimal
28dfd0d
36
Base36
2krg2l
md5
aceaa3eb159e4ac6f6b0f5ff47b081fb
sha1
2b0be612b7996d9d56d23f9924daca09868dac3f
sha256
699aa461feef6692273f9b9889a25a01cec197d17baae12d7d2426c4eabd48a3
sha512
f48a9a0f460992b2be8d98f7b739709987c5189d38ac70cd582b5168150726338d64b411c0cb69b9f2f11119fe07d0d90a5038f223c993ac9dc6d4d0ed65909e
ripemd-160
7b33dbba7bd87d0a52c5dbdb8bea879ac5ce47a7
Diameter
311610426
Circumference
978953025.10359
Area
7.6262992296629E+16
Volume
1.5842895678392E+25
Surface area
3.0505196918652E+17
Circumference
978953025.10359
Perimeter
623220852
Area
24275264397975369
Diagonal
220341845.31303
Surface area
145651586387852214
Volume
3.7822127401579E+24
Space diagonal
269862545.00009
Perimeter
467415639
Area
1.0511497826115E+16
Altitude
134931272.50005
Surface area
1.0511497826115E+16
Volume
4.4573804607596E+23
Height
73447281.77101