1998181 is an odd 7-digits prime number following 1998180
and preceding 1998182 . In scientific notation, it is written as 1.998181 × 10^6.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 1998180 positive integers (up to 1998181) that are relatively prime to 1998181.
1998181 has 2 divisors, whose sum is 1998182
The reverse of 1998181 is 1818991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 7
Sum of Digits 37
Digital Root 1
Name
one million nine hundred ninety-eight thousand one hundred eighty-one
Scientific notation
1.998181 × 10^6
Engineering notation
1.998181 × 10^6
Prime Factorization
1998181
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1998181
Product of the distinct prime numbers
The prime factorization of 1998181 is 1998181.
Since it has a total of 1 prime factors.
3 , 6 , 21 , 7 , 339 , 651 , 3520 , 5254 , 77722 , 2788 , 83605 , 436419 , 6491173 , 5571941 , 72326113 , 83835108 , 827148299 , 583784804 , 5459533324 , 4114700444
n×2
3996362
n×3
5994543
n×4
7992724
n×5
9990905
n÷2
999090.5
n÷3
666060.33333333
n÷3
499545.25
n÷5
399636.2
n2
3992727308761
n3
7978191846547363741
n4
1.5941871362126E+25
n5
3.1854744460244E+31
2 √n
1413.5703024611
3 √n
125.9538967972
4 √n
37.59747734172
5 √n
18.202329218555
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1998182
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
999091
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1413.5706561753
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999989990902
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998181 can be divided by 2 positive divisors.
The sum of these divisors (counting 1998181) is 1998182, the average is 999091.
Base
System
Value
2
Binary
111100111110101100101
3
Ternary
10202111222201
4
Quaternary
13213311211
5
Quinary
1002420211
6
Senary
110454501
8
Octal
7476545
10
Decimal
1998181
12
Duodecimal
804431
16
Hexadecimal
1e7d65
20
Vigesimal
c9f91
36
Base36
16tt1
md5
20f0826eb9af6560215837426c04f130
sha1
41fb40c4f0e7a59d612a860f4b0c650c2390ad97
sha256
0070899b597fd20d796647ba3163eb42e09ec2a8e22cc7031442d59155b4ff7e
sha512
9cf0ac84a0c6a1cca4b70a2322339d7e11d01931b00a40b09896308540ec1a055c4578a64fa2eb9a729bf0998858a000a29d61ccf57d5ca93a2f031f3a614051
ripemd-160
e0f3187f26985c7b5e737f16edc6b96c29020880
Diameter
3996362
Circumference
12554941.500285
Area
12543522780991
Volume
3.3418971858724E+19
Surface area
50174091123964
Circumference
12554941.500285
Perimeter
7992724
Area
3992727308761
Diagonal
2825854.6702762
Surface area
23956363852566
Volume
7978191846547363741
Space diagonal
3460951.0147188
Perimeter
5994543
Area
1728901639885.4
Altitude
1730475.5073594
Surface area
1728901639885.4
Volume
9.4023892605014E+17
Height
941951.55675874