6887642721 is an odd 10-digits composite number following 6887642720
and preceding 6887642722 . In scientific notation, it is written as 6.887642721 × 10^9.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 4391174480 positive integers (up to 6887642721) that are relatively prime to 6887642721.
6887642721 has 8 divisors, whose sum is 6988968000
The reverse of 6887642721 is 1272467886
Previous prime number is 6791
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 51
Digital Root 6
Name
six billion eight hundred eighty-seven million six hundred forty-two thousand seven hundred twenty-one
Scientific notation
6.887642721 × 10^9
Engineering notation
6.887642721 × 10^9
Prime Factorization
69 × 6791 × 14699
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6887642721
Product of the distinct prime numbers
The prime factorization of 6887642721 is 69 × 6791 × 14699.
Since it has a total of 3 prime factors.
9 , 3 , 3 , 50 , 698 , 616 , 3570 , 5942 , 70873 , 11712 , 556296 , 463086 , 7988819 , 7970120 , 55952431 , 84935674 , 162550835 , 704786029 , 7647717323 , 2557436481
n×2
13775285442
n×3
20662928163
n×4
27550570884
n×5
34438213605
n÷2
3443821360.5
n÷3
2295880907
n÷3
1721910680.25
n÷5
1377528544.2
n2
4.7439622252144E+19
n3
3.2674716889197E+29
n4
2.2505177594261E+39
n5
1.5500762264193E+49
2 √n
82991.823217712
3 √n
1902.6410843229
4 √n
288.0830144554
5 √n
92.814135147309
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
-6887642720
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 6887642721 can be divided by 8 positive divisors.
The sum of these divisors (counting 6887642721) is 1, the average is 0.125.
Base
System
Value
2
Binary
110011010100010010001011001100001
3
Ternary
122210000022111120120
4
Quaternary
12122202101121201
5
Quinary
103101214031341
6
Senary
3055242030453
8
Octal
63242213141
10
Decimal
6887642721
12
Duodecimal
14027a8429
16
Hexadecimal
19a891661
20
Vigesimal
57c7f6g1
36
Base36
35wq34x
md5
4bd84663ac9255d5460ee51f19d95dca
sha1
3e39143bfef66831346d9039779b28b3882e62ee
sha256
6109a009d5ec64cdc3c946b6c147f52b23a4a2831e701adc2dc9d7487440fc66
sha512
ce6523e556d758ab35267363b8cd5dabb7a92c88d69910e167e43b8e0e963140affe8f3476799df839f37ef863f99de71ecdd7f37a175a7077278f46b1c6efc1
ripemd-160
95e5130c2da3a8e4fc5c752ba9b791d70e468d05
Diameter
13775285442
Circumference
43276335545.69
Area
1.4903596875641E+20
Volume
1.3686753404964E+30
Surface area
5.9614387502565E+20
Circumference
43276335545.69
Perimeter
27550570884
Area
4.7439622252144E+19
Diagonal
9740597748.8185
Surface area
2.8463773351287E+20
Volume
3.2674716889197E+29
Space diagonal
11929747137.154
Perimeter
20662928163
Area
2.0541959008147E+19
Altitude
5964873568.577
Surface area
2.0541959008147E+19
Volume
3.8507523142837E+28
Height
3246865916.2728