1991471 is an odd 7-digits composite number following 1991470
and preceding 1991472 . In scientific notation, it is written as 1.991471 × 10^6.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 1911960 positive integers (up to 1991471) that are relatively prime to 1991471.
1991471 has 8 divisors, whose sum is 2072064
The reverse of 1991471 is 1741991
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 32
Digital Root 5
Name
one million nine hundred ninety-one thousand four hundred seventy-one
Scientific notation
1.991471 × 10^6
Engineering notation
1.991471 × 10^6
Prime Factorization
31 × 283 × 227
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1991471
Product of the distinct prime numbers
The prime factorization of 1991471 is 31 × 283 × 227.
Since it has a total of 3 prime factors.
2 , 5 , 17 , 15 , 505 , 609 , 9935 , 3893 , 93312 , 52410 , 860495 , 317506 , 9543053 , 2264464 , 74706947 , 89017841 , 899029971 , 455459245 , 1118061352 , 8099403844
n×2
3982942
n×3
5974413
n×4
7965884
n×5
9957355
n÷2
995735.5
n÷3
663823.66666667
n÷3
497867.75
n÷5
398294.2
n2
3965956743841
n3
7898087842613780111
n4
1.5728812894018E+25
n5
3.1323474742863E+31
2 √n
1411.1948837776
3 √n
125.81275201987
4 √n
37.56587392538
5 √n
18.190087883231
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
-1991470
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 1991471 can be divided by 8 positive divisors.
The sum of these divisors (counting 1991471) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100110001100101111
3
Ternary
10202011210012
4
Quaternary
13212030233
5
Quinary
1002211341
6
Senary
110403435
8
Octal
7461457
10
Decimal
1991471
12
Duodecimal
80057b
16
Hexadecimal
1e632f
20
Vigesimal
c8idb
36
Base36
16omn
md5
234ff62eff4272f39b7856d1a316b2e5
sha1
f443bb1e6ccf9d79c8643e25ab0002bffb136619
sha256
369dc331e8713369e284a1c61e3de5f11c3a3ca2e9b6f9e87211eabc8d1a2b91
sha512
66d85963bf573bdb1fec25b60360f7720c80041fa18d949adfe306b3025a305026b4ae80c0113a9c92ddbb75111ef64701142a13d55f3f7942046e7bb9945276
ripemd-160
5db569bc62d6ee44a58da315215ebb3752f93123
Diameter
3982942
Circumference
12512781.326874
Area
12459420570906
Volume
3.3083432991683E+19
Surface area
49837682283623
Circumference
12512781.326874
Perimeter
7965884
Area
3965956743841
Diagonal
2816365.2972727
Surface area
23795740463046
Volume
7898087842613780111
Space diagonal
3449328.9538
Perimeter
5974413
Area
1717309645238.3
Altitude
1724664.4769
Surface area
1717309645238.3
Volume
9.3079857865321E+17
Height
938788.43242424