1998907428 is an even 10-digits composite number following 1998907427
and preceding 1998907429 . In scientific notation, it is written as 1.998907428 × 10^9.
The sum of its digits is 57. It has a total of 4 prime factors and 12 positive divisors.
There are 571116384 positive integers (up to 1998907428) that are relatively prime to 1998907428.
1998907428 has 12 divisors, whose sum is 3664663772
The reverse of 1998907428 is 8247098991
Previous prime number is 21
Is Prime? no Number parity even Number length 10 Sum of Digits 57 Digital Root 3
Name
one billion nine hundred ninety-eight million nine hundred seven thousand four hundred twenty-eight
Scientific notation
1.998907428 × 10^9
Engineering notation
1.998907428 × 10^9
Prime Factorization
2 × 2 × 21 × 23796517
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
999453714 Product of the distinct prime numbers
The prime factorization of 1998907428 is 2 × 2 × 21 × 23796517.
Since it has a total of 4 prime factors.
9 , 8 , 67 , 50 , 526 , 135 , 6930 , 7947 , 53559 , 49341 , 596135 , 957297 , 1158150 , 3447514 , 70048440 , 15774819 , 114388694 , 429784929 , 7026928965 , 7248652138
n×2
3997814856
n×3
5996722284
n×4
7995629712
n×5
9994537140
n÷2
999453714
n÷3
666302476
n÷3
499726857
n÷5
399781485.6
n2
3995630905713575184
n3
7.9868962969772E+27
n4
1.5965066334693E+37
n5
3.1912689684932E+46
2 √n44709.142554963
3 √n1259.6915823613
4 √n211.44536541377
5 √n72.470045897177
1 , 2 , 4 , 21 , 42 , 84 , 23796517 , 47593034 , 95186068 , 499726857 , 999453714 , 1998907428
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1998907427 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998907428 can be divided by 12 positive divisors.
The sum of these divisors (counting 1998907428) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110111001001001110100000100100
3
Ternary
12011022022000111110
4
Quaternary
1313021032200210
5
Quinary
13043210014203
6
Senary
530203305020
8
Octal
16711164044
10
Decimal
1998907428
12
Duodecimal
47951b170
16
Hexadecimal
7724e824
20
Vigesimal
1b4d38b8
36
Base36
x23iuc
md5
5817972a33bb0191c2595bf7d9b7af7b
sha1
4b1d73fde2bf8cea57818d80e3bbbba859b9b020
sha256
d55baea53902ca1f72033d6643ebf5c23857985d06325938dec17f6b4b62b93b
sha512
a10568bce5c6a46e6e6b7a985bf9f1e400a2d2cacef8037bb934840d17e02683aa5ee99f7af934b9a0477654fb84a46ad4a1f3a7a1883b354fbb329e0bcd06bc
ripemd-160
56357c66e0159bfda83648c7ba03c39791bee65e
Diameter
3997814856
Circumference
12559505782.022
Area
1.2552644699846E+19
Volume
3.3455432975423E+28
Surface area
5.0210578799384E+19
Circumference
12559505782.022
Perimeter
7995629712
Area
3995630905713575184
Diagonal
2826881994.6059
Surface area
2.3973785434281E+19
Volume
7.9868962969772E+27
Space diagonal
3462209224.9228
Perimeter
5996722284
Area
1.7301589342471E+18
Altitude
1731104612.4614
Surface area
1.7301589342471E+18
Volume
9.4126475537105E+26
Height
942293998.20197