1997691 is an odd 7-digits composite number following 1997690
and preceding 1997692 . In scientific notation, it is written as 1.997691 × 10^6.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 1331792 positive integers (up to 1997691) that are relatively prime to 1997691.
1997691 has 4 divisors, whose sum is 2663592
The reverse of 1997691 is 1967991
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 42
Digital Root 6
Name
one million nine hundred ninety-seven thousand six hundred ninety-one
Scientific notation
1.997691 × 10^6
Engineering notation
1.997691 × 10^6
Prime Factorization
3 × 665897
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1997691
Product of the distinct prime numbers
The prime factorization of 1997691 is 3 × 665897.
Since it has a total of 2 prime factors.
6 , 1 , 5 , 13 , 626 , 730 , 2918 , 822 , 95820 , 37716 , 716122 , 45944 , 3388580 , 1618704 , 46393413 , 73491313 , 981585921 , 975345752 , 8916534504 , 1610136470
n×2
3995382
n×3
5993073
n×4
7990764
n×5
9988455
n÷2
998845.5
n÷3
665897
n÷3
499422.75
n÷5
399538.2
n2
3990769331481
n3
7972323976575610371
n4
1.5926239857089E+25
n5
3.1815706026349E+31
2 √n
1413.3969718377
3 √n
125.94360035676
4 √n
37.595172187898
5 √n
18.20143640491
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
-1997690
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 1997691 can be divided by 4 positive divisors.
The sum of these divisors (counting 1997691) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100111101101111011
3
Ternary
10202111022120
4
Quaternary
13213231323
5
Quinary
1002411231
6
Senary
110452323
8
Octal
7475573
10
Decimal
1997691
12
Duodecimal
8040a3
16
Hexadecimal
1e7b7b
20
Vigesimal
c9e4b
36
Base36
16tff
md5
cd12d8315906aeebb2fa87817a51b75b
sha1
ea637cf76e6d2fe60ebc344dbee025ad7433d06d
sha256
eb3f9e52eff7fcc0202f411036ac040f4a728db0a974bf3cd10834c399036265
sha512
51b6ae84d1c1c808d125078e44a92aa09daecedb3dec79f08770fb11227aa4cb9324f4e0fcdd175a5f4949de011f549ee4c569f3213682aded31817bfdf82768
ripemd-160
4e39ba9691ec493a18b03cafec71374abaf370fc
Diameter
3995382
Circumference
12551862.739485
Area
12537371613952
Volume
3.3394392582464E+19
Surface area
50149486455809
Circumference
12551862.739485
Perimeter
7990764
Area
3990769331481
Diagonal
2825161.7056307
Surface area
23944615988886
Volume
7972323976575610371
Space diagonal
3460102.3098231
Perimeter
5993073
Area
1728053810853.2
Altitude
1730051.1549115
Surface area
1728053810853.2
Volume
9.3954739094212E+17
Height
941720.56854356