2155245561 is an odd 10-digits composite number following 2155245560
and preceding 2155245562 . In scientific notation, it is written as 2.155245561 × 10^9.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 1231568856 positive integers (up to 2155245561) that are relatively prime to 2155245561.
2155245561 has 12 divisors, whose sum is 3557865792
The reverse of 2155245561 is 1655425512
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 36
Digital Root 9
Name
two billion one hundred fifty-five million two hundred forty-five thousand five hundred sixty-one
Scientific notation
2.155245561 × 10^9
Engineering notation
2.155245561 × 10^9
Prime Factorization
3 × 3 × 7 × 34210247
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
718415187
Product of the distinct prime numbers
The prime factorization of 2155245561 is 3 × 3 × 7 × 34210247.
Since it has a total of 4 prime factors.
6 , 9 , 81 , 5 , 383 , 445 , 7063 , 9385 , 30847 , 22451 , 477925 , 683254 , 7775541 , 8825606 , 69492177 , 75669968 , 371648406 , 429545156 , 1958179384 , 3350768620
n×2
4310491122
n×3
6465736683
n×4
8620982244
n×5
10776227805
n÷2
1077622780.5
n÷3
718415187
n÷3
538811390.25
n÷5
431049112.2
n2
4645083428210204721
n3
1.0011295439125E+28
n4
2.1576800055033E+37
n5
4.6503302539195E+46
2 √n
46424.622357107
3 √n
1291.7116794821
4 √n
215.46373791686
5 √n
73.569762129586
1 , 3 , 7 , 9 , 21 , 63 , 34210247 , 102630741 , 239471729 , 307892223 , 718415187 , 2155245561
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2155245560
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2155245561 can be divided by 12 positive divisors.
The sum of these divisors (counting 2155245561) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
10000000011101100110111111111001
3
Ternary
12120012110211002200
4
Quaternary
2000131212333321
5
Quinary
13403220324221
6
Senary
553510220413
8
Octal
20035467771
10
Decimal
2155245561
12
Duodecimal
501954709
16
Hexadecimal
80766ff9
20
Vigesimal
1dda5di1
36
Base36
zn6e49
md5
f8e7cb3cc84152d9513fbabeb4caeae7
sha1
d2a4798f4ff9f5f62332ce4cd3061557f5928298
sha256
e04c54bdf2d1cb6f3a13cb8a8baa7e27e11553856398c7503037b2f5e8d05548
sha512
dfe309f46fc151680186965a58026dac0d0d578fe4374427fa5ee135e83cb7f6e755fa4e796b2590c716f4febfb1540084c5921bd7845128b7598ad861eea41c
ripemd-160
2548ef9eef50369a044764260003eecf8b3c3839
Diameter
4310491122
Circumference
13541807242.239
Area
1.4592959973377E+19
Volume
4.1935216272628E+28
Surface area
5.8371839893507E+19
Circumference
13541807242.239
Perimeter
8620982244
Area
4645083428210204721
Diagonal
3047977502.6106
Surface area
2.7870500569261E+19
Volume
1.0011295439125E+28
Space diagonal
3732994814.4393
Perimeter
6465736683
Area
2.0113801257641E+18
Altitude
1866497407.2196
Surface area
2.0113801257641E+18
Volume
1.1798424822445E+27
Height
1015992500.8702