1990657986 is an even 10-digits composite number following 1990657985
and preceding 1990657987 . In scientific notation, it is written as 1.990657986 × 10^9.
The sum of its digits is 60. It has a total of 3 prime factors and 8 positive divisors.
There are 663552660 positive integers (up to 1990657986) that are relatively prime to 1990657986.
1990657986 has 8 divisors, whose sum is 3981315984
The reverse of 1990657986 is 6897560991
Previous prime number is 3
Is Prime? no
Number parity even
Number length 10
Sum of Digits 60
Digital Root 6
Name
one billion nine hundred ninety million six hundred fifty-seven thousand nine hundred eighty-six
Scientific notation
1.990657986 × 10^9
Engineering notation
1.990657986 × 10^9
Prime Factorization
2 × 3 × 331776331
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1990657986
Product of the distinct prime numbers
The prime factorization of 1990657986 is 2 × 3 × 331776331.
Since it has a total of 3 prime factors.
4 , 3 , 32 , 41 , 296 , 65 , 1718 , 3821 , 10729 , 39841 , 284722 , 899191 , 9731053 , 2805296 , 51475445 , 15079534 , 59754742 , 892675395 , 6798098304 , 4241493726
n×2
3981315972
n×3
5971973958
n×4
7962631944
n×5
9953289930
n÷2
995328993
n÷3
663552662
n÷3
497664496.5
n÷5
398131597.2
n2
3962719217225576196
n3
7.8884186560458E+27
n4
1.5703143594569E+37
n5
3.1259588201833E+46
2 √n
44616.79040451
3 √n
1257.956287558
4 √n
211.22686951359
5 √n
72.410130486687
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
-1990657985
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 1990657986 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990657986) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101001110000011111000010
3
Ternary
12010201202220101120
4
Quaternary
1312221300133002
5
Quinary
13034102023421
6
Senary
525310413110
8
Octal
16651603702
10
Decimal
1990657986
12
Duodecimal
476801196
16
Hexadecimal
76a707c2
20
Vigesimal
1b21c4j6
36
Base36
wx6pj6
md5
ce7e623084e7487bf4c19dde973c158c
sha1
211f1969166a7656179c8c58654dc5f0a6c34358
sha256
b6564a579f5998541abd4828956243f51cd2f9d06ad8e5252394c1ff5c944fa7
sha512
45fc40a381cea1485498565885b8b639b888aa5b0e04e3c7bb99c9c91fe7b6555f4fbcd9ae19fca1c3fe52b8d16c8fe2be6ae19d04d3baa177e79e81e3fda4ab
ripemd-160
f65f8f0bd835ecd139cb699d5038cf903769e568
Diameter
3981315972
Circumference
12507673009.255
Area
1.2449249581075E+19
Volume
3.3042930797699E+28
Surface area
4.97969983243E+19
Circumference
12507673009.255
Perimeter
7962631944
Area
3962719217225576196
Diagonal
2815215521.8475
Surface area
2.3776315303353E+19
Volume
7.8884186560458E+27
Space diagonal
3447920772.2447
Perimeter
5971973958
Area
1.7159077550911E+18
Altitude
1723960386.1224
Surface area
1.7159077550911E+18
Volume
9.2965905408807E+26
Height
938405173.94917