1998478737 is an odd 10-digits composite number following 1998478736
and preceding 1998478738 . In scientific notation, it is written as 1.998478737 × 10^9.
The sum of its digits is 63. It has a total of 5 prime factors and 20 positive divisors.
There are 1331744544 positive integers (up to 1998478737) that are relatively prime to 1998478737.
1998478737 has 20 divisors, whose sum is 2986669620
The reverse of 1998478737 is 7378748991
Previous prime number is 3413
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 63
Digital Root 9
Name
one billion nine hundred ninety-eight million four hundred seventy-eight thousand seven hundred thirty-seven
Scientific notation
1.998478737 × 10^9
Engineering notation
1.998478737 × 10^9
Prime Factorization
3 × 3 × 9 × 3413 × 7229
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
666159579
Product of the distinct prime numbers
The prime factorization of 1998478737 is 3 × 3 × 9 × 3413 × 7229.
Since it has a total of 5 prime factors.
8 , 7 , 20 , 30 , 915 , 520 , 7298 , 2384 , 20068 , 21328 , 651466 , 634504 , 8517079 , 5914471 , 16457711 , 17643072 , 712792268 , 771368630 , 1993287106 , 1039501978
n×2
3996957474
n×3
5995436211
n×4
7993914948
n×5
9992393685
n÷2
999239368.5
n÷3
666159579
n÷3
499619684.25
n÷5
399695747.4
n2
3993917262241115169
n3
7.9817587259261E+27
n4
1.5951375097628E+37
n5
3.187848395852E+46
2 √n
44704.348077117
3 √n
1259.6015236546
4 √n
211.43402771814
5 √n
72.466937206753
1 , 3 , 9 , 27 , 81 , 3413 , 7229 , 10239 , 21687 , 30717 , 65061 , 92151 , 195183 , 276453 , 585549 , 24672577 , 74017731 , 222053193 , 666159579 , 1998478737
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1998478736
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998478737 can be divided by 20 positive divisors.
The sum of these divisors (counting 1998478737) is 1, the average is 0.05.
Base
System
Value
2
Binary
1110111000111100101110110010001
3
Ternary
12011021111020110000
4
Quaternary
1313013211312101
5
Quinary
13043102304422
6
Senary
530150200213
8
Octal
16707456621
10
Decimal
1998478737
12
Duodecimal
479353069
16
Hexadecimal
771e5d91
20
Vigesimal
1b4a9ggh
36
Base36
x1uc29
md5
961a20c845b0c5300136d42e2af58e8b
sha1
9f9415d279baf2b4b9a0014c87db869cb7e1e243
sha256
0ad1cff0a3f2dc27390e344f031084e8b88c389b0e87376a8dc7a4683275e4ce
sha512
ff199b787606a9578c97ceb2963d12a4b10faed6165fa037ac885e8224b7d2a21f539520daf0f4e2c6f70d3f023129aab49dcc8f5ebec3e4a59467a8c7e938df
ripemd-160
7dcbc5b4ba1d48da9be7794e05ae385caf1b13eb
Diameter
3996957474
Circumference
12556812237.029
Area
1.2547261130102E+19
Volume
3.3433912768128E+28
Surface area
5.0189044520409E+19
Circumference
12556812237.029
Perimeter
7993914948
Area
3993917262241115169
Diagonal
2826275733.9797
Surface area
2.3963503573447E+19
Volume
7.9817587259261E+27
Space diagonal
3461466710.3301
Perimeter
5995436211
Area
1.729416904857E+18
Altitude
1730733355.165
Surface area
1.729416904857E+18
Volume
9.4065928681621E+26
Height
942091911.32655