987990986 is an even 9-digits composite number following 987990985
and preceding 987990987 . In scientific notation, it is written as 9.87990986 × 10^8.
The sum of its digits is 65. It has a total of 3 prime factors and 8 positive divisors.
There are 487037740 positive integers (up to 987990986) that are relatively prime to 987990986.
987990986 has 8 divisors, whose sum is 1502859744
The reverse of 987990986 is 689099789
Previous prime number is 71
Is Prime? no Number parity even Number length 9 Sum of Digits 65 Digital Root 2
Name
nine hundred eighty-seven million nine hundred ninety thousand nine hundred eighty-six
Scientific notation
9.87990986 × 10^8
Engineering notation
9.87990986 × 10^6
Prime Factorization
2 × 71 × 6957683
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
987990986 Product of the distinct prime numbers
The prime factorization of 987990986 is 2 × 71 × 6957683.
Since it has a total of 3 prime factors.
8 , 7 , 77 , 20 , 84 , 603 , 9753 , 6060 , 31311 , 70687 , 439111 , 682052 , 1133583 , 7313000 , 85514844 , 44363052 , 519412464 , 487570392 , 1466603345 , 4644715061
n×2
1975981972
n×3
2963972958
n×4
3951963944
n×5
4939954930
n÷2
493995493
n÷3
329330328.66667
n÷3
246997746.5
n÷5
197598197.2
n2
976126188417252196
n3
9.6440387535478E+26
n4
9.5282233571399E+35
n5
9.4137987894489E+44
2 √n31432.323903905
3 √n995.98086351624
4 √n177.29163517748
5 √n62.943457691379
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
-987990985 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 987990986 can be divided by 8 positive divisors.
The sum of these divisors (counting 987990986) is 1, the average is 0.125.
Base
System
Value
2
Binary
111010111000111000101111001010
3
Ternary
2112212002010211202
4
Quaternary
322320320233022
5
Quinary
4010411202421
6
Senary
242012024202
8
Octal
7270705712
10
Decimal
987990986
12
Duodecimal
236a62062
16
Hexadecimal
3ae38bca
20
Vigesimal
f8eih96
36
Base36
gc82q2
md5
fed9e1757410b9fbcce215d72b158349
sha1
d365b6d389fd029b83eda9950e4d78f51f351f4b
sha256
384616d52ce4c039d771eab64f2a1c8a6121f5a53158a376fa095aaa4d0b4947
sha512
bea0baa79717f1fdcdad50b0b58ccbd1393f77cbb3c7caf63e7d53625d6de95127e2767e6354b6b6d25f5fca7c8ee2dacb3cf8146fefe0942e430431614cad11
ripemd-160
c0ebc3272e945628542133ce624e4e1ab46c3694
Diameter
1975981972
Circumference
6207730446.8611
Area
3.0665908625082E+18
Volume
4.0396855065441E+27
Surface area
1.2266363450033E+19
Circumference
6207730446.8611
Perimeter
3951963944
Area
976126188417252196
Diagonal
1397230251.9036
Surface area
5856757130503513176
Volume
9.6440387535478E+26
Space diagonal
1711250585.1721
Perimeter
2963972958
Area
4.2267503823431E+17
Altitude
855625292.58604
Surface area
4.2267503823431E+17
Volume
1.1365608667766E+26
Height
465743417.30119