1621997946 is an even 10-digits composite number following 1621997945
and preceding 1621997947 . In scientific notation, it is written as 1.621997946 × 10^9.
The sum of its digits is 54. It has a total of 4 prime factors and 12 positive divisors.
There are 540665928 positive integers (up to 1621997946) that are relatively prime to 1621997946.
1621997946 has 12 divisors, whose sum is 2733367182
The reverse of 1621997946 is 6497991261
Previous prime number is 9
Is Prime? no Number parity even Number length 10 Sum of Digits 54 Digital Root 9
Name
one billion six hundred twenty-one million nine hundred ninety-seven thousand nine hundred forty-six
Scientific notation
1.621997946 × 10^9
Engineering notation
1.621997946 × 10^9
Prime Factorization
2 × 9 × 9 × 10012333
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
180221994 Product of the distinct prime numbers
The prime factorization of 1621997946 is 2 × 9 × 9 × 10012333.
Since it has a total of 4 prime factors.
3 , 6 , 18 , 26 , 115 , 252 , 9881 , 7636 , 71017 , 89287 , 526004 , 772220 , 3998348 , 2723665 , 93121559 , 77154437 , 849190505 , 983662490 , 7456586383 , 5653673448
n×2
3243995892
n×3
4865993838
n×4
6487991784
n×5
8109989730
n÷2
810998973
n÷3
540665982
n÷3
405499486.5
n÷5
324399589.2
n2
2630877336828218916
n3
4.2672776365133E+27
n4
6.9215155614363E+36
n5
1.1226684023857E+46
2 √n40274.035630912
3 √n1174.9429146252
4 √n200.68391971185
5 √n69.504041729434
1 , 2 , 9 , 18 , 81 , 162 , 10012333 , 20024666 , 90110997 , 180221994 , 810998973 , 1621997946
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1621997945 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1621997946 can be divided by 12 positive divisors.
The sum of these divisors (counting 1621997946) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1100000101011011011100101111010
3
Ternary
11012001002000220000
4
Quaternary
1200223123211322
5
Quinary
11310212413241
6
Senary
424541013430
8
Octal
14053334572
10
Decimal
1621997946
12
Duodecimal
393254276
16
Hexadecimal
60adb97a
20
Vigesimal
156h9eh6
36
Base36
qtp1mi
md5
e40802e99d80139e5ddfa0bd4e6b5a6e
sha1
96fb4dda2e2de4df98b0957008b245d5aa961c8a
sha256
2586f00fc76a0ba83541555db642cdd95f46405b2745f8ba48c93707ba16dab3
sha512
74e29977c2780d063408d90ea675735257c1f3fa74818c75606fe5b02eb660edbc3e3d1d95533844bc02bb4610e3d4e01c285aeedcae8f8ab3e90e65d387ecbd
ripemd-160
7a257c2839689a359f2d65603b77df07d72c2395
Diameter
3243995892
Circumference
10191313662.583
Area
8.2651449138754E+18
Volume
1.7874730764931E+28
Surface area
3.3060579655502E+19
Circumference
10191313662.583
Perimeter
6487991784
Area
2630877336828218916
Diagonal
2293851493.3745
Surface area
1.5785264020969E+19
Volume
4.2672776365133E+27
Space diagonal
2809382852.2444
Perimeter
4865993838
Area
1.139203303967E+18
Altitude
1404691426.1222
Surface area
1.139203303967E+18
Volume
5.0290349233071E+26
Height
764617164.45817