987389989 is an odd 9-digits prime number following 987389988
and preceding 987389990 . In scientific notation, it is written as 9.87389989 × 10^8.
The sum of its digits is 70. It has a total of 1 prime factors and 2 positive divisors.
There are 987389988 positive integers (up to 987389989) that are relatively prime to 987389989.
987389989 has 2 divisors, whose sum is 987389990
The reverse of 987389989 is 989983789
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 70
Digital Root 7
Name
nine hundred eighty-seven million three hundred eighty-nine thousand nine hundred eighty-nine
Scientific notation
9.87389989 × 10^8
Engineering notation
9.87389989 × 10^6
Prime Factorization
987389989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
987389989
Product of the distinct prime numbers
The prime factorization of 987389989 is 987389989.
Since it has a total of 1 prime factors.
8 , 3 , 85 , 72 , 121 , 218 , 7198 , 8192 , 57058 , 65908 , 186600 , 575016 , 8322690 , 7517303 , 79569040 , 70579289 , 971144502 , 346613998 , 7989850348 , 5357006859
n×2
1974779978
n×3
2962169967
n×4
3949559956
n×5
4936949945
n÷2
493694994.5
n÷3
329129996.33333
n÷3
246847497.25
n÷5
197477997.8
n2
974938990377420121
n3
9.6264499898443E+26
n4
9.5050603495814E+35
n5
9.3852014340175E+44
2 √n
31422.762275141
3 √n
995.77887013326
4 √n
177.2646673061
5 √n
62.935798099807
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
987389990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
493694995
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
31422.762291053
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999979745
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 987389989 can be divided by 2 positive divisors.
The sum of these divisors (counting 987389989) is 987389990, the average is 493694995.
Base
System
Value
2
Binary
111010110110100110000000100101
3
Ternary
2112210221121102121
4
Quaternary
322312212000211
5
Quinary
4010232434424
6
Senary
241551105541
8
Octal
7266460045
10
Decimal
987389989
12
Duodecimal
2368122b1
16
Hexadecimal
3ada6025
20
Vigesimal
f8b3ej9
36
Base36
gbv6zp
md5
b49d2f0a0f451c209df8ec9577d131f4
sha1
9ec2a15a2f6b64faa89567cd854727f047d1d526
sha256
ec56896280c97d489f8e74d19d94051278a8d10ca86f5ed7c1a8c13101add812
sha512
a8f0533eafa2d4920bd4dae937700d51918d397297d81ae0dedb5d9c322b026b06b67ac4283b1ad7cecb86833706b294937305a98de1df550d51bc19731ed894
ripemd-160
38c24d4c3fa3edcb38aee4b5b0be5c49a335a6e8
Diameter
1974779978
Circumference
6203954271.341
Area
3.062861169868E+18
Volume
4.0323179424326E+27
Surface area
1.2251444679472E+19
Circumference
6203954271.341
Perimeter
3949559956
Area
974938990377420121
Diagonal
1396380313.7952
Surface area
5849633942264520726
Volume
9.6264499898443E+26
Space diagonal
1710209627.8329
Perimeter
2962169967
Area
4.221609664034E+17
Altitude
855104813.91644
Surface area
4.221609664034E+17
Volume
1.1344880110953E+26
Height
465460104.59841