1998653521 is an odd 10-digits composite number following 1998653520
and preceding 1998653522 . In scientific notation, it is written as 1.998653521 × 10^9.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 1956128932 positive integers (up to 1998653521) that are relatively prime to 1998653521.
1998653521 has 4 divisors, whose sum is 2041178112
The reverse of 1998653521 is 1253568991
Previous prime number is 47
Is Prime? no Number parity odd Number length 10 Sum of Digits 49 Digital Root 4
Name
one billion nine hundred ninety-eight million six hundred fifty-three thousand five hundred twenty-one
Scientific notation
1.998653521 × 10^9
Engineering notation
1.998653521 × 10^9
Prime Factorization
47 × 42524543
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1998653521 Product of the distinct prime numbers
The prime factorization of 1998653521 is 47 × 42524543.
Since it has a total of 2 prime factors.
9 , 2 , 65 , 8 , 997 , 772 , 8717 , 4931 , 46819 , 22667 , 664733 , 301029 , 7144398 , 2614896 , 62173070 , 30834509 , 765891172 , 157673119 , 1074904155 , 8870107888
n×2
3997307042
n×3
5995960563
n×4
7994614084
n×5
9993267605
n÷2
999326760.5
n÷3
666217840.33333
n÷3
499663380.25
n÷5
399730704.2
n2
3994615897005697441
n3
7.983853127593E+27
n4
1.5956956164611E+37
n5
3.1892426622842E+46
2 √n44706.302922519
3 √n1259.6382435473
4 √n211.43865049351
5 √n72.46820473268
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
-1998653520 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 1998653521 can be divided by 4 positive divisors.
The sum of these divisors (counting 1998653521) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111001000010000100001010001
3
Ternary
12011021211010012111
4
Quaternary
1313020100201101
5
Quinary
13043123403041
6
Senary
530154025321
8
Octal
16710204121
10
Decimal
1998653521
12
Duodecimal
479418241
16
Hexadecimal
77210851
20
Vigesimal
1b4bbdg1
36
Base36
x1y2xd
md5
b8e56bd4ceafa96a8c8a2c5d3e47e73d
sha1
efee6a6a59938a6c9288c8fb85a1c307a89152be
sha256
fc8d391944b160cba8cfd11346dc01e3f5ea0d4199453b80510bbe825c169689
sha512
c8f0489647988218ed308766bf208f28080200bb0709b118813502b46cf4c569b6ba8b8b8492fa699baa62ef5f0394387f705864c52246f6961b7743ce97d213
ripemd-160
2858e144cfdfd2c57d86fe911ff150fec8867546
Diameter
3997307042
Circumference
12557910437.29
Area
1.2549455955946E+19
Volume
3.3442685777315E+28
Surface area
5.0197823823784E+19
Circumference
12557910437.29
Perimeter
7994614084
Area
3994615897005697441
Diagonal
2826522915.8829
Surface area
2.3967695382034E+19
Volume
7.983853127593E+27
Space diagonal
3461769445.0984
Perimeter
5995960563
Area
1.729719422584E+18
Altitude
1730884722.5492
Surface area
1.729719422584E+18
Volume
9.4090611441974E+26
Height
942174305.29431