1998979854 is an even 10-digits composite number following 1998979853
and preceding 1998979855 . In scientific notation, it is written as 1.998979854 × 10^9.
The sum of its digits is 69. It has a total of 4 prime factors and 16 positive divisors.
There are 631256760 positive integers (up to 1998979854) that are relatively prime to 1998979854.
1998979854 has 16 divisors, whose sum is 4208378880
The reverse of 1998979854 is 4589798991
Previous prime number is 19
Is Prime? no Number parity even Number length 10 Sum of Digits 69 Digital Root 6
Name
one billion nine hundred ninety-eight million nine hundred seventy-nine thousand eight hundred fifty-four
Scientific notation
1.998979854 × 10^9
Engineering notation
1.998979854 × 10^9
Prime Factorization
2 × 3 × 19 × 17534911
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1998979854 Product of the distinct prime numbers
The prime factorization of 1998979854 is 2 × 3 × 19 × 17534911.
Since it has a total of 4 prime factors.
10 , 6 , 41 , 98 , 670 , 834 , 4405 , 9573 , 17864 , 39402 , 855329 , 702042 , 4069606 , 6164920 , 22965888 , 76440610 , 127308014 , 665084279 , 8281251000 , 8689196472
n×2
3997959708
n×3
5996939562
n×4
7995919416
n×5
9994899270
n÷2
999489927
n÷3
666326618
n÷3
499744963.5
n÷5
399795970.8
n2
3995920456697861316
n3
7.9877644911255E+27
n4
1.5967380296256E+37
n5
3.1918471533373E+46
2 √n44709.95251619
3 √n1259.7067962258
4 √n211.44728070181
5 √n72.470571048007
1 , 2 , 3 , 6 , 19 , 38 , 57 , 114 , 17534911 , 35069822 , 52604733 , 105209466 , 333163309 , 666326618 , 999489927 , 1998979854
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1998979853 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998979854 can be divided by 16 positive divisors.
The sum of these divisors (counting 1998979854) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111001001100000001100001110
3
Ternary
12011022102200211220
4
Quaternary
1313021200030032
5
Quinary
13043214323404
6
Senary
530205024210
8
Octal
16711401416
10
Decimal
1998979854
12
Duodecimal
479555066
16
Hexadecimal
7726030e
20
Vigesimal
1b4dc9ce
36
Base36
x252q6
md5
4a903806c78cc8c246e7e33fa64ce9ff
sha1
b4e944562ecfa935ba9c323df680bb3563a8d5c9
sha256
05e5e2de2adbb70f6df4484e338dc7ea7649c1791bc6ab493330c101d0843665
sha512
65681ee774faf6365af1640e84b47897d3185e2382aca2304d8afd669e472af3015cc5904a68d3e52732536faa66749bdf472ffa870e2e76f45a532e0fb6bc29
ripemd-160
6f2f9e751d0f9b2dfdd4e648525704fa9142ffcb
Diameter
3997959708
Circumference
12559960848.001
Area
1.2553554351091E+19
Volume
3.3459069658567E+28
Surface area
5.0214217404365E+19
Circumference
12559960848.001
Perimeter
7995919416
Area
3995920456697861316
Diagonal
2826984420.4374
Surface area
2.3975522740187E+19
Volume
7.9877644911255E+27
Space diagonal
3462334670.4346
Perimeter
5996939562
Area
1.7302843135011E+18
Altitude
1731167335.2173
Surface area
1.7302843135011E+18
Volume
9.4136707303266E+26
Height
942328140.1458