21690691 is an odd 8-digits composite number following 21690690
and preceding 21690692 . In scientific notation, it is written as 2.1690691 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 18432000 positive integers (up to 21690691) that are relatively prime to 21690691.
21690691 has 16 divisors, whose sum is 25226208
The reverse of 21690691 is 19609612
Previous prime number is 601
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million six hundred ninety thousand six hundred ninety-one
Scientific notation
2.1690691 × 10^7
Engineering notation
2.1690691 × 10^6
Prime Factorization
17 × 11 × 601 × 193
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21690691
Product of the distinct prime numbers
The prime factorization of 21690691 is 17 × 11 × 601 × 193.
Since it has a total of 4 prime factors.
8 , 9 , 87 , 95 , 749 , 332 , 9694 , 7133 , 65531 , 64051 , 660275 , 164391 , 4589726 , 5513541 , 65387071 , 82851312 , 817269957 , 717559325 , 336215369 , 9051171139
n×2
43381382
n×3
65072073
n×4
86762764
n×5
108453455
n÷2
10845345.5
n÷3
7230230.3333333
n÷3
5422672.75
n÷5
4338138.2
n2
470486076057481
n3
1.0205168095565E+22
n4
2.2135714776397E+29
n5
4.8013894927895E+36
2 √n
4657.3265936586
3 √n
278.88455461049
4 √n
68.2446085318
5 √n
29.326124738525
1 , 11 , 17 , 187 , 193 , 601 , 2123 , 3281 , 6611 , 10217 , 36091 , 112387 , 115993 , 1275923 , 1971881 , 21690691
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21690690
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21690691 can be divided by 16 positive divisors.
The sum of these divisors (counting 21690691) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010101111100101000011
3
Ternary
1111211000000221
4
Quaternary
1102233211003
5
Quinary
21023100231
6
Senary
2052523511
8
Octal
122574503
10
Decimal
21690691
12
Duodecimal
7320597
16
Hexadecimal
14af943
20
Vigesimal
6fb6eb
36
Base36
cwwn7
md5
2d24fa3170ff91b0b6f7b92f51566f1f
sha1
6d168c7f47cf0dd9c504192094f23ec03b64aa28
sha256
a2cc5c47a4fbfdff782da34aeeac41a1cdb01f4f057b85f40e96903afced30a8
sha512
4d166e65a9e1bbfc8216299d5876f987e895c63e31f29f824b8fe751b1d6292a6182ffdecc1be0e93e7c405d46030a70ecf01c1416388fb3a94a06adb1142a7a
ripemd-160
6fec5e460a71b73c25ea86e915126d95c143216b
Diameter
43381382
Circumference
136286630.99377
Area
1.4780756001585E+15
Volume
4.2747308156903E+22
Surface area
5.9123024006339E+15
Circumference
136286630.99377
Perimeter
86762764
Area
470486076057481
Diagonal
30675269.389444
Surface area
2822916456344886
Volume
1.0205168095565E+22
Space diagonal
37569378.863277
Perimeter
65072073
Area
2.0372644699632E+14
Altitude
18784689.431638
Surface area
2.0372644699632E+14
Volume
1.2026905939205E+21
Height
10225089.796481