1990990538 is an even 10-digits composite number following 1990990537
and preceding 1990990539 . In scientific notation, it is written as 1.990990538 × 10^9.
The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors.
There are 952212844 positive integers (up to 1990990538) that are relatively prime to 1990990538.
1990990538 has 8 divisors, whose sum is 3116333088
The reverse of 1990990538 is 8350990991
Previous prime number is 23
Is Prime? no Number parity even Number length 10 Sum of Digits 53 Digital Root 8
Name
one billion nine hundred ninety million nine hundred ninety thousand five hundred thirty-eight
Scientific notation
1.990990538 × 10^9
Engineering notation
1.990990538 × 10^9
Prime Factorization
2 × 23 × 43282403
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1990990538 Product of the distinct prime numbers
The prime factorization of 1990990538 is 2 × 23 × 43282403.
Since it has a total of 3 prime factors.
8 , 6 , 54 , 97 , 752 , 914 , 8503 , 7389 , 58709 , 41452 , 852578 , 671625 , 9687929 , 6175019 , 61264501 , 30138123 , 993847305 , 837975146 , 8257415083 , 6749090246
n×2
3981981076
n×3
5972971614
n×4
7963962152
n×5
9954952690
n÷2
995495269
n÷3
663663512.66667
n÷3
497747634.5
n÷5
398198107.6
n2
3964043322405529444
n3
7.8923727471315E+27
n4
1.5713639461908E+37
n5
3.1285707486202E+46
2 √n44620.517007314
3 √n1258.0263335075
4 √n211.23569065694
5 √n72.412549639043
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
-1990990537 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 1990990538 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990990538) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101011000001101011001010
3
Ternary
12010202101210120022
4
Quaternary
1312223001223022
5
Quinary
13034143144123
6
Senary
525321500442
8
Octal
16653015312
10
Decimal
1990990538
12
Duodecimal
476941722
16
Hexadecimal
76ac1aca
20
Vigesimal
1b23dg6i
36
Base36
wxdu4q
md5
7fdc75c47a2c05f686f9bd2171485ec5
sha1
453957bc97ce43b72059152906771f30a2c457c5
sha256
b663dac7ec63f2de9b6106216034ffd588a243fec62d83353364965cd6207bc0
sha512
cc0395fdf18765ed03d1486ae4642f82454faa54b09fd0c0bf41c7c5a660d7b9fd0f73a90203ad3e23b07d15cc5206de4b58e23b079621002679d7a0d2236c23
ripemd-160
cfc5b0a579d4bcc9e7c00f7fdd2903a1d828c86e
Diameter
3981981076
Circumference
12509762495.095
Area
1.2453409380181E+19
Volume
3.3059493655707E+28
Surface area
4.9813637520724E+19
Circumference
12509762495.095
Perimeter
7963962152
Area
3964043322405529444
Diagonal
2815685821.3961
Surface area
2.3784259934433E+19
Volume
7.8923727471315E+27
Space diagonal
3448496769.2049
Perimeter
5972971614
Area
1.7164811094526E+18
Altitude
1724248384.6024
Surface area
1.7164811094526E+18
Volume
9.3012504819143E+26
Height
938561940.46537