1998907431 is an odd 10-digits composite number following 1998907430
and preceding 1998907432 . In scientific notation, it is written as 1.998907431 × 10^9.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 1323017592 positive integers (up to 1998907431) that are relatively prime to 1998907431.
1998907431 has 8 divisors, whose sum is 2684384640
The reverse of 1998907431 is 1347098991
Previous prime number is 139
Is Prime? no Number parity odd Number length 10 Sum of Digits 51 Digital Root 6
Name
one billion nine hundred ninety-eight million nine hundred seven thousand four hundred thirty-one
Scientific notation
1.998907431 × 10^9
Engineering notation
1.998907431 × 10^9
Prime Factorization
3 × 139 × 4793543
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1998907431 Product of the distinct prime numbers
The prime factorization of 1998907431 is 3 × 139 × 4793543.
Since it has a total of 3 prime factors.
9 , 3 , 91 , 63 , 90 , 565 , 2489 , 8707 , 45149 , 65125 , 313830 , 59291 , 6540296 , 8408881 , 39519343 , 28583993 , 343284737 , 556162629 , 7880683128 , 6008653203
n×2
3997814862
n×3
5996722293
n×4
7995629724
n×5
9994537155
n÷2
999453715.5
n÷3
666302477
n÷3
499726857.75
n÷5
399781486.2
n2
3995630917707019761
n3
7.9868963329379E+27
n4
1.5965066430536E+37
n5
3.1912689924408E+46
2 √n44709.142588513
3 √n1259.6915829915
4 √n211.44536549311
5 √n72.470045918929
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
-1998907430 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 1998907431 can be divided by 8 positive divisors.
The sum of these divisors (counting 1998907431) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110111001001001110100000100111
3
Ternary
12011022022000111120
4
Quaternary
1313021032200213
5
Quinary
13043210014211
6
Senary
530203305023
8
Octal
16711164047
10
Decimal
1998907431
12
Duodecimal
47951b173
16
Hexadecimal
7724e827
20
Vigesimal
1b4d38bb
36
Base36
x23iuf
md5
3791082e978cc503085b37772addbe09
sha1
520cde0038a36d7298e9bb9d175ed41fdc1b56ec
sha256
39f997b00ef8e1b4a74aaa12d20f6981f2876d02177c4159c0260547d1c13429
sha512
b5fc49dcf8e49586a35d1b1d3a483684addb0e8646ad84a2734f0c17385f6e1aeb5aa986a0e3ac93ed31c685a1806499ad62b5a4e5e1b3ccb141f96cb9ee16de
ripemd-160
666090417fe0929f0dbf05ae1e92767fa99253d2
Diameter
3997814862
Circumference
12559505800.871
Area
1.2552644737525E+19
Volume
3.3455433126055E+28
Surface area
5.0210578950098E+19
Circumference
12559505800.871
Perimeter
7995629724
Area
3995630917707019761
Diagonal
2826881998.8486
Surface area
2.3973785506242E+19
Volume
7.9868963329379E+27
Space diagonal
3462209230.119
Perimeter
5996722293
Area
1.7301589394404E+18
Altitude
1731104615.0595
Surface area
1.7301589394404E+18
Volume
9.4126475960906E+26
Height
942293999.61619