1990354945 is an odd 10-digits composite number following 1990354944
and preceding 1990354946 . In scientific notation, it is written as 1.990354945 × 10^9.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 1591680624 positive integers (up to 1990354945) that are relatively prime to 1990354945.
1990354945 has 8 divisors, whose sum is 2389330944
The reverse of 1990354945 is 5494530991
Previous prime number is 2687
Is Prime? no Number parity odd Number length 10 Sum of Digits 49 Digital Root 4
Name
one billion nine hundred ninety million three hundred fifty-four thousand nine hundred forty-five
Scientific notation
1.990354945 × 10^9
Engineering notation
1.990354945 × 10^9
Prime Factorization
5 × 2687 × 148147
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1990354945 Product of the distinct prime numbers
The prime factorization of 1990354945 is 5 × 2687 × 148147.
Since it has a total of 3 prime factors.
5 , 2 , 12 , 90 , 54 , 335 , 9196 , 4986 , 97643 , 65751 , 925857 , 504006 , 6704810 , 1463398 , 4609739 , 35968072 , 399322724 , 996046189 , 6446921133 , 962422686
n×2
3980709890
n×3
5971064835
n×4
7961419780
n×5
9951774725
n÷2
995177472.5
n÷3
663451648.33333
n÷3
497588736.25
n÷5
398070989
n2
3961512807085953025
n3
7.8848166052644E+27
n4
1.5693583720706E+37
n5
3.1235801963279E+46
2 √n44613.394233122
3 √n1257.892450763
4 √n211.21883020489
5 √n72.407925730791
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
-1990354944 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 1990354945 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990354945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101000100110100000000001
3
Ternary
12010201012111200211
4
Quaternary
1312220212200001
5
Quinary
13034012324240
6
Senary
525300114121
8
Octal
16650464001
10
Decimal
1990354945
12
Duodecimal
476695941
16
Hexadecimal
76a26801
20
Vigesimal
1b1je775
36
Base36
wx07pd
md5
0043270c03a68cda1cfc76f3219bbbdb
sha1
c727db2f45c382db8aeb37b8c6af5ed969f47784
sha256
ddcddb8034ebc9dddd099794d98450e5f0834c37cb4d6b575b1b85fb6794fe19
sha512
5f4fc46d5ada1c13fb4290dd15831d8114a02e6c73e0c0016a18f520b1149ea61509fc4aeea9c21dabb22be86aaca343d55cbb82d2ae4fd00d5310aed657cd3c
ripemd-160
44f0f804cc038d7dd20903437dde8a623c4dd5d8
Diameter
3980709890
Circumference
12505768946.496
Area
1.2445459531843E+19
Volume
3.3027842562668E+28
Surface area
4.9781838127372E+19
Circumference
12505768946.496
Perimeter
7961419780
Area
3961512807085953025
Diagonal
2814786957.1554
Surface area
2.3769076842516E+19
Volume
7.8848166052644E+27
Space diagonal
3447395889.836
Perimeter
5971064835
Area
1.7153853641769E+18
Altitude
1723697944.918
Surface area
1.7153853641769E+18
Volume
9.2923454833245E+26
Height
938262319.05179