1991438102 is an even 10-digits composite number following 1991438101
and preceding 1991438103 . In scientific notation, it is written as 1.991438102 × 10^9.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 959236992 positive integers (up to 1991438102) that are relatively prime to 1991438102.
1991438102 has 16 divisors, whose sum is 3098507280
The reverse of 1991438102 is 2018341991
Previous prime number is 73
Is Prime? no Number parity even Number length 10 Sum of Digits 38 Digital Root 2
Name
one billion nine hundred ninety-one million four hundred thirty-eight thousand one hundred two
Scientific notation
1.991438102 × 10^9
Engineering notation
1.991438102 × 10^9
Prime Factorization
2 × 43 × 73 × 317209
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1991438102 Product of the distinct prime numbers
The prime factorization of 1991438102 is 2 × 43 × 73 × 317209.
Since it has a total of 4 prime factors.
3 , 4 , 61 , 63 , 673 , 341 , 3807 , 9935 , 52670 , 38288 , 181511 , 416982 , 5684375 , 9993293 , 24214666 , 89917348 , 753996533 , 824374587 , 678578770 , 8845174941
n×2
3982876204
n×3
5974314306
n×4
7965752408
n×5
9957190510
n÷2
995719051
n÷3
663812700.66667
n÷3
497859525.5
n÷5
398287620.4
n2
3965825714097362404
n3
7.8976964329448E+27
n4
1.5727773594596E+37
n5
3.1320887595908E+46
2 √n44625.531952012
3 √n1258.1205923036
4 √n211.24756081908
5 √n72.415804936943
1 , 2 , 43 , 73 , 86 , 146 , 3139 , 6278 , 317209 , 634418 , 13639987 , 23156257 , 27279974 , 46312514 , 995719051 , 1991438102
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1991438101 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991438102 can be divided by 16 positive divisors.
The sum of these divisors (counting 1991438102) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110101100101110111100010110
3
Ternary
12010210020112111202
4
Quaternary
1312230232330112
5
Quinary
13034302004402
6
Senary
525335232502
8
Octal
16654567426
10
Decimal
1991438102
12
Duodecimal
476b18732
16
Hexadecimal
76b2ef16
20
Vigesimal
1b269f52
36
Base36
wxnfh2
md5
5cc2c01ce8f35fa7f7481fbc7b5f2bd9
sha1
65987294fdfc7d85a1cfeb0887120b628f2a9b30
sha256
17081b597596283583a53158178c4882601bd0dc530891feb7faa2399df91a51
sha512
16330537cdb48955e4d3b90c68fdccba15cba7aa1e9c0fee83f7ceb331d01a582e3d8e5ece7c17e834f977dc0a92266ade559eeb9a7b4e031fdf9d415b8d005f
ripemd-160
1a66f7ff2e2c0e5623804affb3e16032e2a3b667
Diameter
3982876204
Circumference
12512574622.644
Area
1.2459008928826E+19
Volume
3.3081793458696E+28
Surface area
4.9836035715303E+19
Circumference
12512574622.644
Perimeter
7965752408
Area
3965825714097362404
Diagonal
2816318772.4749
Surface area
2.3794954284584E+19
Volume
7.8976964329448E+27
Space diagonal
3449271972.7925
Perimeter
5974314306
Area
1.7172529076949E+18
Altitude
1724635986.3963
Surface area
1.7172529076949E+18
Volume
9.3075245058135E+26
Height
938772924.15831