1998492761 is an odd 10-digits composite number following 1998492760
and preceding 1998492762 . In scientific notation, it is written as 1.998492761 × 10^9.
The sum of its digits is 56. It has a total of 2 prime factors and 4 positive divisors.
There are 1997763024 positive integers (up to 1998492761) that are relatively prime to 1998492761.
1998492761 has 4 divisors, whose sum is 1999222500
The reverse of 1998492761 is 1672948991
Previous prime number is 2749
Is Prime? no Number parity odd Number length 10 Sum of Digits 56 Digital Root 2
Name
one billion nine hundred ninety-eight million four hundred ninety-two thousand seven hundred sixty-one
Scientific notation
1.998492761 × 10^9
Engineering notation
1.998492761 × 10^9
Prime Factorization
2749 × 726989
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1998492761 Product of the distinct prime numbers
The prime factorization of 1998492761 is 2749 × 726989.
Since it has a total of 2 prime factors.
3 , 2 , 6 , 23 , 391 , 198 , 2157 , 5705 , 11585 , 49989 , 136188 , 508677 , 7086158 , 2281110 , 3638577 , 43345130 , 586109792 , 661361522 , 4232182573 , 9353160376
n×2
3996985522
n×3
5995478283
n×4
7993971044
n×5
9992463805
n÷2
999246380.5
n÷3
666164253.66667
n÷3
499623190.25
n÷5
399698552.2
n2
3993973315769403121
n3
7.9819267591923E+27
n4
1.5951822847078E+37
n5
3.187960248464E+46
2 √n44704.504929593
3 √n1259.6044699974
4 √n211.43439864316
5 √n72.46703891146
4 divisors
τ Total Divisors
4 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1998492760 Sum of the proper positive divisors of n
A Arithmetic Mean
0.25 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
4 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998492761 can be divided by 4 positive divisors.
The sum of these divisors (counting 1998492761) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111000111101001010001011001
3
Ternary
12011021111221200102
4
Quaternary
1313013221101121
5
Quinary
13043103232021
6
Senary
530150345145
8
Octal
16707512131
10
Decimal
1998492761
12
Duodecimal
47935b1b5
16
Hexadecimal
771e9459
20
Vigesimal
1b4abbi1
36
Base36
x1umvt
md5
48fecdb963a9870dc686f957f28cd0db
sha1
292cf799e789f7b0eee0725192d6b582e7d2ce8a
sha256
30be00ec33fd79ec8f9562dd7ebd4b75c2e6ca48b9187d84dcc0ccc1f21dac23
sha512
dccb6dd334abf9ffbeb88e023829c932146298999b422b42979e888746c72d9f01430ae7dd654c7115ad7c428d435058d22095d6dec54eb62a74a52ebbcf7df4
ripemd-160
7331968690cb6556521747793559f395423cdf1c
Diameter
3996985522
Circumference
12556900352.42
Area
1.2547437227455E+19
Volume
3.3434616624227E+28
Surface area
5.0189748909819E+19
Circumference
12556900352.42
Perimeter
7993971044
Area
3993973315769403121
Diagonal
2826295566.9107
Surface area
2.3963839894616E+19
Volume
7.9819267591923E+27
Space diagonal
3461491000.6106
Perimeter
5995478283
Area
1.7294411767467E+18
Altitude
1730745500.3053
Surface area
1.7294411767467E+18
Volume
9.4067908972654E+26
Height
942098522.30355