1990386961 is an odd 10-digits composite number following 1990386960
and preceding 1990386962 . In scientific notation, it is written as 1.990386961 × 10^9.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 1926180900 positive integers (up to 1990386961) that are relatively prime to 1990386961.
1990386961 has 4 divisors, whose sum is 2054593024
The reverse of 1990386961 is 1696830991
Previous prime number is 31
Is Prime? no Number parity odd Number length 10 Sum of Digits 52 Digital Root 7
Name
one billion nine hundred ninety million three hundred eighty-six thousand nine hundred sixty-one
Scientific notation
1.990386961 × 10^9
Engineering notation
1.990386961 × 10^9
Prime Factorization
31 × 64206031
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1990386961 Product of the distinct prime numbers
The prime factorization of 1990386961 is 31 × 64206031.
Since it has a total of 2 prime factors.
9 , 1 , 91 , 96 , 807 , 595 , 8212 , 1998 , 32607 , 20194 , 882144 , 383025 , 6453110 , 4845328 , 93257920 , 44856717 , 775372622 , 925127437 , 585848175 , 5095909935
n×2
3980773922
n×3
5971160883
n×4
7961547844
n×5
9951934805
n÷2
995193480.5
n÷3
663462320.33333
n÷3
497596740.25
n÷5
398077392.2
n2
3961640254518815521
n3
7.885197106767E+27
n4
1.5694593506224E+37
n5
3.1238314272983E+46
2 √n44613.753047687
3 √n1257.8991953672
4 √n211.21967959375
5 √n72.408158673889
4 divisors
τ Total Divisors
4 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1990386960 Sum of the proper positive divisors of n
A Arithmetic Mean
0.25 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
4 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990386961 can be divided by 4 positive divisors.
The sum of these divisors (counting 1990386961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110101000101110010100010001
3
Ternary
12010201021010121121
4
Quaternary
1312220232110101
5
Quinary
13034014340321
6
Senary
525300522241
8
Octal
16650562421
10
Decimal
1990386961
12
Duodecimal
4766b0381
16
Hexadecimal
76a2e511
20
Vigesimal
1b1ji781
36
Base36
wx0wep
md5
5b89976bd667e12a87802cb1a511c9d0
sha1
6817a0c2e7b9aa933c7c9ea657d0b61c9677d817
sha256
ec1199d0dbc30e7702fe1e7c1c8e78ddef8118ce1ea970274cd457dadb52bd33
sha512
ea5bf91ee3695d4f12a485b21abf1203614aa5e8b400b85c8533f91ef0d762de3be4def5393a2bb2ca7984625b780ac8434379e50f1696c5c3830c2b57e28b48
ripemd-160
fc3b2c796d006801a55702115352c289ee144cef
Diameter
3980773922
Circumference
12505970108.957
Area
1.2445859919762E+19
Volume
3.3029436403635E+28
Surface area
4.9783439679048E+19
Circumference
12505970108.957
Perimeter
7961547844
Area
3961640254518815521
Diagonal
2814832234.6168
Surface area
2.3769841527113E+19
Volume
7.885197106767E+27
Space diagonal
3447451343.1746
Perimeter
5971160883
Area
1.7154405505342E+18
Altitude
1723725671.5873
Surface area
1.7154405505342E+18
Volume
9.2927939086458E+26
Height
938277411.53892