21690625 is an odd 8-digits composite number following 21690624
and preceding 21690626 . In scientific notation, it is written as 2.1690625 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors.
There are 15750000 positive integers (up to 21690625) that are relatively prime to 21690625.
21690625 has 24 divisors, whose sum is 29623104
The reverse of 21690625 is 52609612
Previous prime number is 631
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million six hundred ninety thousand six hundred twenty-five
Scientific notation
2.1690625 × 10^7
Engineering notation
2.1690625 × 10^6
Prime Factorization
25 × 11 × 25 × 631 × 5
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
867625
Product of the distinct prime numbers
The prime factorization of 21690625 is 25 × 11 × 25 × 631 × 5.
Since it has a total of 5 prime factors.
3 , 7 , 18 , 69 , 652 , 649 , 2657 , 7728 , 31246 , 30285 , 393253 , 998653 , 4647777 , 2984511 , 31236847 , 89090576 , 510868534 , 195351510 , 706739467 , 5412306342
n×2
43381250
n×3
65071875
n×4
86762500
n×5
108453125
n÷2
10845312.5
n÷3
7230208.3333333
n÷3
5422656.25
n÷5
4338125
n2
470483212890625
n3
1.0205074939606E+22
n4
2.2135445361189E+29
n5
4.8013164453753E+36
2 √n
4657.3195080432
3 √n
278.88427174876
4 √n
68.244556618409
5 √n
29.326106891914
1 , 5 , 11 , 25 , 55 , 125 , 275 , 625 , 631 , 1375 , 3125 , 3155 , 6875 , 6941 , 15775 , 34375 , 34705 , 78875 , 173525 , 394375 , 867625 , 1971875 , 4338125 , 21690625
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21690624
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21690625 can be divided by 24 positive divisors.
The sum of these divisors (counting 21690625) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010010101111100100000001
3
Ternary
1111210222221111
4
Quaternary
1102233210001
5
Quinary
21023100000
6
Senary
2052523321
8
Octal
122574401
10
Decimal
21690625
12
Duodecimal
7320541
16
Hexadecimal
14af901
20
Vigesimal
6fb6b5
36
Base36
cwwld
md5
7c86275914823212f06e84904d7ae81f
sha1
2ce379ea24bd6106591cd6c3b0612304a7e4f5ee
sha256
24eed319a94c29216e0dfb3951066b1ee2be6418748615fadf0e66e22ff5d2c4
sha512
5d041e3803a1842fd04fd30a7ccafecce9c9603fbd842c46fea3a154aa0ea1d94e818602bd1acd52956f054665e160908fba8c43a28f959cc5d2d6443963b49e
ripemd-160
dd7157b56cd037c3b649a9d43c4744522191003c
Diameter
43381250
Circumference
136286216.30354
Area
1.4780666052545E+15
Volume
4.2746917946131E+22
Surface area
5.912266421018E+15
Circumference
136286216.30354
Perimeter
86762500
Area
470483212890625
Diagonal
30675176.051349
Surface area
2822899277343750
Volume
1.0205074939606E+22
Space diagonal
37569264.547924
Perimeter
65071875
Area
2.037252072087E+14
Altitude
18784632.273962
Surface area
2.037252072087E+14
Volume
1.2026796153853E+21
Height
10225058.683783