21690761 is an odd 8-digits composite number following 21690760
and preceding 21690762 . In scientific notation, it is written as 2.1690761 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 20481120 positive integers (up to 21690761) that are relatively prime to 21690761.
21690761 has 8 divisors, whose sum is 22908000
The reverse of 21690761 is 16709612
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million six hundred ninety thousand seven hundred sixty-one
Scientific notation
2.1690761 × 10^7
Engineering notation
2.1690761 × 10^6
Prime Factorization
19 × 331 × 3449
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21690761
Product of the distinct prime numbers
The prime factorization of 21690761 is 19 × 331 × 3449.
Since it has a total of 3 prime factors.
1 , 3 , 99 , 39 , 877 , 544 , 7269 , 7254 , 39279 , 87797 , 416522 , 242612 , 6019148 , 6441240 , 93881982 , 53951334 , 696101841 , 349142881 , 6436174718 , 7069861059
n×2
43381522
n×3
65072283
n×4
86763044
n×5
108453805
n÷2
10845380.5
n÷3
7230253.6666667
n÷3
5422690.25
n÷5
4338152.2
n2
470489112759121
n3
1.020526689796E+22
n4
2.2136000522486E+29
n5
4.8014669682913E+36
2 √n
4657.3341086935
3 √n
278.88485461473
4 √n
68.244663591328
5 √n
29.326143666701
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
-21690760
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 21690761 can be divided by 8 positive divisors.
The sum of these divisors (counting 21690761) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101111100110001001
3
Ternary
1111211000010112
4
Quaternary
1102233212021
5
Quinary
21023101021
6
Senary
2052524105
8
Octal
122574611
10
Decimal
21690761
12
Duodecimal
7320635
16
Hexadecimal
14af989
20
Vigesimal
6fb6i1
36
Base36
cwwp5
md5
ba070d54c535ecf7bfdeb0b7e58099c4
sha1
92d5adbf98dc9bee345b414206687c52c4632704
sha256
397c7e18f1a9c8a02f687311c2620da4fc865adcd9daf07791900bb00914290b
sha512
eeca31ccbdf2d8256ab47e76ed912df70c8f70942a4cefe727b3138e65c76a4c70993c5b4c0818867e258e9026522b6a1ef93e45271986fe7f5eabffaae9e646
ripemd-160
a744d3b01ba47d07924f6f3bb60e4fda385ddf95
Diameter
43381522
Circumference
136287070.81674
Area
1.478085140238E+15
Volume
4.2747722019406E+22
Surface area
5.9123405609521E+15
Circumference
136287070.81674
Perimeter
86763044
Area
470489112759121
Diagonal
30675368.384393
Surface area
2822934676554726
Volume
1.020526689796E+22
Space diagonal
37569500.106834
Perimeter
65072283
Area
2.037277619267E+14
Altitude
18784750.053417
Surface area
2.037277619267E+14
Volume
1.2027022378944E+21
Height
10225122.794798