1991415 is an odd 7-digits composite number following 1991414
and preceding 1991416 . In scientific notation, it is written as 1.991415 × 10^6.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 1062080 positive integers (up to 1991415) that are relatively prime to 1991415.
1991415 has 4 divisors, whose sum is 2124192
The reverse of 1991415 is 5141991
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 30
Digital Root 3
Name
one million nine hundred ninety-one thousand four hundred fifteen
Scientific notation
1.991415 × 10^6
Engineering notation
1.991415 × 10^6
Prime Factorization
15 × 132761
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1991415
Product of the distinct prime numbers
The prime factorization of 1991415 is 15 × 132761.
Since it has a total of 2 prime factors.
6 , 10 , 45 , 1 , 8 , 981 , 8611 , 6882 , 90141 , 87395 , 956561 , 906265 , 8580983 , 4828300 , 94751258 , 93818103 , 995041266 , 943712822 , 697020712 , 3405702176
n×2
3982830
n×3
5974245
n×4
7965660
n×5
9957075
n÷2
995707.5
n÷3
663805
n÷3
497853.75
n÷5
398283
n2
3965733702225
n3
7897421580616398375
n4
1.5727043796963E+25
n5
3.1319070922929E+31
2 √n
1411.1750422963
3 √n
125.81157272742
4 √n
37.565609835278
5 √n
18.189985581327
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
-1991414
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 1991415 can be divided by 4 positive divisors.
The sum of these divisors (counting 1991415) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100110001011110111
3
Ternary
10202011201010
4
Quaternary
13212023313
5
Quinary
1002211130
6
Senary
110403303
8
Octal
7461367
10
Decimal
1991415
12
Duodecimal
800533
16
Hexadecimal
1e62f7
20
Vigesimal
c8iaf
36
Base36
16ol3
md5
7e4d2e85dcec34c0a9278a182d4efbba
sha1
e58b4ecb4724d0b9bca17af69098dbbf8c59078a
sha256
34219073a0ef3c61762f17946b09bb71f2984ca836c5f5c0c911988389665fb8
sha512
27afd007d83ed77aec176e2ba82a1ad4643585a39e92d85d5e2d06450c332a83e8058e7c0036adc8ab7387f560d2dee84e3ce38e1c3278d436a174cb97095db3
ripemd-160
3c8629d67f97bffe9533042f4eca8300565939ab
Diameter
3982830
Circumference
12512429.468497
Area
12458719865004
Volume
3.3080642159955E+19
Surface area
49834879460014
Circumference
12512429.468497
Perimeter
7965660
Area
3965733702225
Diagonal
2816286.1013132
Surface area
23794402213350
Volume
7897421580616398375
Space diagonal
3449231.9589548
Perimeter
5974245
Area
1717213065385.5
Altitude
1724615.9794774
Surface area
1717213065385.5
Volume
9.3072005892381E+17
Height
938762.03377107