1998138 is an even 7-digits composite number following 1998137
and preceding 1998139 . In scientific notation, it is written as 1.998138 × 10^6.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 666044 positive integers (up to 1998138) that are relatively prime to 1998138.
1998138 has 8 divisors, whose sum is 3996288
The reverse of 1998138 is 8318991
Previous prime number is 3
Is Prime? no
Number parity even
Number length 7
Sum of Digits 39
Digital Root 3
Name
one million nine hundred ninety-eight thousand one hundred thirty-eight
Scientific notation
1.998138 × 10^6
Engineering notation
1.998138 × 10^6
Prime Factorization
2 × 3 × 333023
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1998138
Product of the distinct prime numbers
The prime factorization of 1998138 is 2 × 3 × 333023.
Since it has a total of 3 prime factors.
4 , 3 , 59 , 72 , 524 , 14 , 5228 , 4608 , 98417 , 17358 , 331242 , 989800 , 1616592 , 7461656 , 48248499 , 30048900 , 503630375 , 258474855 , 8876893460 , 5190288640
n×2
3996276
n×3
5994414
n×4
7992552
n×5
9990690
n÷2
999069
n÷3
666046
n÷3
499534.5
n÷5
399627.6
n2
3992555467044
n3
7977676795808364072
n4
1.5940499157423E+25
n5
3.1851317105415E+31
2 √n
1413.5550926653
3 √n
125.9529932994
4 √n
37.597275069682
5 √n
18.202250876614
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
-1998137
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 1998138 can be divided by 8 positive divisors.
The sum of these divisors (counting 1998138) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100111110100111010
3
Ternary
10202111221010
4
Quaternary
13213310322
5
Quinary
1002420023
6
Senary
110454350
8
Octal
7476472
10
Decimal
1998138
12
Duodecimal
8043b6
16
Hexadecimal
1e7d3a
20
Vigesimal
c9f6i
36
Base36
16tru
md5
ac74188126f68da82bd3d518a1c764f7
sha1
d0f3d7fe9994096e22e4a356b7b9608ce49a6d27
sha256
d7df021bb6fb5693087bc3625cd97b9affd71a189640ef2a90742f129f9335f5
sha512
94cc4bd11780e1d74f5b12bee9465f1d407051df305c8e7b22dc5410403d7627c65d547ee296b5303278867eff6c790b15007da1b186f366fa363cc8432e033d
ripemd-160
86aeebd7b25c852efff8f06cb8675e02dc0e0225
Diameter
3996276
Circumference
12554671.323317
Area
12542982924315
Volume
3.3416814419234E+19
Surface area
50171931697261
Circumference
12554671.323317
Perimeter
7992552
Area
3992555467044
Diagonal
2825793.8590931
Surface area
23955332802264
Volume
7977676795808364072
Space diagonal
3460876.5365341
Perimeter
5994414
Area
1728827230239.3
Altitude
1730438.268267
Surface area
1728827230239.3
Volume
9.4017822673844E+17
Height
941931.28636435