1998955217 is an odd 10-digits composite number following 1998955216
and preceding 1998955218 . In scientific notation, it is written as 1.998955217 × 10^9.
The sum of its digits is 56. It has a total of 3 prime factors and 8 positive divisors.
There are 1612602432 positive integers (up to 1998955217) that are relatively prime to 1998955217.
1998955217 has 8 divisors, whose sum is 2418903936
The reverse of 1998955217 is 7125598991
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 56
Digital Root 2
Name
one billion nine hundred ninety-eight million nine hundred fifty-five thousand two hundred seventeen
Scientific notation
1.998955217 × 10^9
Engineering notation
1.998955217 × 10^9
Prime Factorization
7 × 17 × 16797943
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1998955217
Product of the distinct prime numbers
The prime factorization of 1998955217 is 7 × 17 × 16797943.
Since it has a total of 3 prime factors.
1 , 5 , 42 , 44 , 606 , 285 , 878 , 439 , 5269 , 74784 , 144477 , 511017 , 4466538 , 4685953 , 5355358 , 31677499 , 213714453 , 12633548 , 3871552142 , 7895795262
n×2
3997910434
n×3
5996865651
n×4
7995820868
n×5
9994776085
n÷2
999477608.5
n÷3
666318405.66667
n÷3
499738804.25
n÷5
399791043.4
n2
3995821959571517089
n3
7.9874691522886E+27
n4
1.5966593132594E+37
n5
3.1916504640115E+46
2 √n
44709.676995031
3 √n
1259.7016209988
4 √n
211.44662918815
5 √n
72.470392410262
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
-1998955216
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 1998955217 can be divided by 8 positive divisors.
The sum of these divisors (counting 1998955217) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110111001001011010001011010001
3
Ternary
12011022101110001102
4
Quaternary
1313021122023101
5
Quinary
13043213031332
6
Senary
530204314145
8
Octal
16711321321
10
Decimal
1998955217
12
Duodecimal
479542955
16
Hexadecimal
7725a2d1
20
Vigesimal
1b4d980h
36
Base36
x24jpt
md5
b274e69b76715f98ef4daaee926db078
sha1
05c257baa43201ce20deb48c6f0511739870824e
sha256
9b80fb5197270fa81d4c8f1b676ec5c6f358bad2e54cd42e5b0c11f01bde8f94
sha512
ed47e035306860bc7aaaed1287eccf940eb9d5e52b144237d548c2fc51b4c2e333b718a6a25da2b10aff3d936e6e347c82a524eb3e96891ad8af90e62fdda1e8
ripemd-160
0658611888456e68ad1ab91e9008120a1a043bfb
Diameter
3997910434
Circumference
12559806049.164
Area
1.2553244913243E+19
Volume
3.345783254614E+28
Surface area
5.0212979652971E+19
Circumference
12559806049.164
Perimeter
7995820868
Area
3995821959571517089
Diagonal
2826949578.4579
Surface area
2.3974931757429E+19
Volume
7.9874691522886E+27
Space diagonal
3462291997.8989
Perimeter
5996865651
Area
1.7302416629943E+18
Altitude
1731145998.9494
Surface area
1.7302416629943E+18
Volume
9.4133226701694E+26
Height
942316526.15262