6987889987 is an odd 10-digits composite number following 6987889986
and preceding 6987889988 . In scientific notation, it is written as 6.987889987 × 10^9.
The sum of its digits is 79. It has a total of 3 prime factors and 8 positive divisors.
There are 6414720480 positive integers (up to 6987889987) that are relatively prime to 6987889987.
6987889987 has 8 divisors, whose sum is 7566999440
The reverse of 6987889987 is 7899887896
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 79
Digital Root 7
Name
six billion nine hundred eighty-seven million eight hundred eighty-nine thousand nine hundred eighty-seven
Scientific notation
6.987889987 × 10^9
Engineering notation
6.987889987 × 10^9
Prime Factorization
13 × 181 × 2969779
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6987889987
Product of the distinct prime numbers
The prime factorization of 6987889987 is 13 × 181 × 2969779.
Since it has a total of 3 prime factors.
3 , 4 , 29 , 11 , 495 , 642 , 2320 , 395 , 4229 , 53050 , 731743 , 940904 , 5288269 , 1894720 , 62538834 , 16641910 , 741986077 , 42080326 , 4215547620 , 197501616
n×2
13975779974
n×3
20963669961
n×4
27951559948
n×5
34939449935
n÷2
3493944993.5
n÷3
2329296662.3333
n÷3
1746972496.75
n÷5
1397577997.4
n2
4.8830606470415E+19
n3
3.4122290601375E+29
n4
2.3844281282685E+39
n5
1.6662121442249E+49
2 √n
83593.600155754
3 √n
1911.8274211914
4 √n
289.12557852213
5 √n
93.082751369909
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
-6987889986
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 6987889987 can be divided by 8 positive divisors.
The sum of these divisors (counting 6987889987) is 1, the average is 0.125.
Base
System
Value
2
Binary
110100000100000101011110101000011
3
Ternary
200000222221120222021
4
Quaternary
12200200223311003
5
Quinary
103302344434422
6
Senary
3113222422311
8
Octal
64040536503
10
Decimal
6987889987
12
Duodecimal
1430291997
16
Hexadecimal
1a082bd43
20
Vigesimal
593e64j7
36
Base36
37keqf7
md5
861dcf040c70b905522b0434b7093bd8
sha1
65ef018166ca9e37fa640ad586323879c2a561b6
sha256
345a6cc55ac9c8440db4f642c28006fbbf4df3b85af8debabff30e9faa1ee65f
sha512
ba9890180583c7f060640518deeaa6ae5773bb87e6f784aef3c7e850d39a9b0056e2f1b2b54c8f5f102563ccbe3addab4b034aa5486ee67aed4bc8a37c25e4f7
ripemd-160
b80289d17c047235872b5f8c07c3fe8070292a11
Diameter
13975779974
Circumference
43906207694.506
Area
1.5340587455779E+20
Volume
1.4293111663591E+30
Surface area
6.1362349823116E+20
Circumference
43906207694.506
Perimeter
27951559948
Area
4.8830606470415E+19
Diagonal
9882368791.9866
Surface area
2.9298363882249E+20
Volume
3.4122290601375E+29
Space diagonal
12103380495.186
Perimeter
20963669961
Area
2.114427284279E+19
Altitude
6051690247.5929
Surface area
2.114427284279E+19
Volume
4.0213505123084E+28
Height
3294122930.6622