8721645138 is an even 10-digits composite number following 8721645137
and preceding 8721645139 . In scientific notation, it is written as 8.721645138 × 10^9.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 2907215028 positive integers (up to 8721645138) that are relatively prime to 8721645138.
8721645138 has 8 divisors, whose sum is 13567003632
The reverse of 8721645138 is 8315461278
Previous prime number is 27
Is Prime? no
Number parity even
Number length 10
Sum of Digits 45
Digital Root 9
Name
eight billion seven hundred twenty-one million six hundred forty-five thousand one hundred thirty-eight
Scientific notation
8.721645138 × 10^9
Engineering notation
8.721645138 × 10^9
Prime Factorization
2 × 27 × 161511947
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
8721645138
Product of the distinct prime numbers
The prime factorization of 8721645138 is 2 × 27 × 161511947.
Since it has a total of 3 prime factors.
4 , 2 , 12 , 84 , 494 , 520 , 6687 , 1904 , 77759 , 38539 , 981893 , 718444 , 5819357 , 2344769 , 24145056 , 12874646 , 77965446 , 791850977 , 7747896865 , 3868308050
n×2
17443290276
n×3
26164935414
n×4
34886580552
n×5
43608225690
n÷2
4360822569
n÷3
2907215046
n÷3
2180411284.5
n÷5
1744329027.6
n2
7.6067093913199E+19
n3
6.6343019978984E+29
n4
5.7862027763994E+39
n5
5.0465207312266E+49
2 √n
93389.748570172
3 √n
2058.4143654761
4 √n
305.59736348695
5 √n
97.301532948815
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
-8721645137
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 8721645138 can be divided by 8 positive divisors.
The sum of these divisors (counting 8721645138) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000000111110110011011111001010010
3
Ternary
211111211022110221000
4
Quaternary
20013312123321102
5
Quinary
120330220121023
6
Senary
4001235042430
8
Octal
100766337122
10
Decimal
8721645138
12
Duodecimal
1834a40416
16
Hexadecimal
207d9be52
20
Vigesimal
6g5a5cgi
36
Base36
408n4gi
md5
f2974007c5575a17693fda08be7d2b1a
sha1
d525e847bc89a07e2955b5f08986682a79087bef
sha256
8c66f110e1bb9f93c6e20f50949a2a6a562181d27ac60953dbba1d08a659b7af
sha512
49457a18a6551da48da568c2e9c0b74c8fbeabf8f7a9846966a9dd23ec966b3e7b75edda7257346495ff9c634041489933004bd6cd704b0bffba4d1211764bf8
ripemd-160
74bbc2f722a447ee7c6e8e0b8e96e5660d6b1fa3
Diameter
17443290276
Circumference
54799712585.516
Area
2.3897182341763E+20
Volume
2.7789699224392E+30
Surface area
9.5588729367052E+20
Circumference
54799712585.516
Perimeter
34886580552
Area
7.6067093913199E+19
Diagonal
12334268840.365
Surface area
4.5640256347919E+20
Volume
6.6343019978984E+29
Space diagonal
15106332504.602
Perimeter
26164935414
Area
3.2938017860444E+19
Altitude
7553166252.301
Surface area
3.2938017860444E+19
Volume
7.8185998852557E+28
Height
4111422946.7883