21492889 is an odd 8-digits composite number following 21492888
and preceding 21492890 . In scientific notation, it is written as 2.1492889 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 18908400 positive integers (up to 21492889) that are relatively prime to 21492889.
21492889 has 8 divisors, whose sum is 24203520
The reverse of 21492889 is 98829412
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-one million four hundred ninety-two thousand eight hundred eighty-nine
Scientific notation
2.1492889 × 10^7
Engineering notation
2.1492889 × 10^6
Prime Factorization
11 × 31 × 63029
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492889
Product of the distinct prime numbers
The prime factorization of 21492889 is 11 × 31 × 63029.
Since it has a total of 3 prime factors.
8 , 9 , 36 , 17 , 618 , 260 , 2400 , 1737 , 42012 , 61290 , 947527 , 178562 , 7791436 , 3675518 , 71346228 , 25119284 , 404821757 , 577048343 , 7978328533 , 1041423867
n×2
42985778
n×3
64478667
n×4
85971556
n×5
107464445
n÷2
10746444.5
n÷3
7164296.3333333
n÷3
5373222.25
n÷5
4298577.8
n2
461944277566321
n3
9.9285170819181E+21
n4
2.1339251557627E+29
n5
4.5864216507115E+36
2 √n
4636.0423854835
3 √n
278.03422883061
4 √n
68.088489375838
5 √n
29.27244233616
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
-21492888
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 21492889 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492889) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111010010011001
3
Ternary
1111102221200221
4
Quaternary
1101333102121
5
Quinary
21000233024
6
Senary
2044400041
8
Octal
121772231
10
Decimal
21492889
12
Duodecimal
7246021
16
Hexadecimal
147f499
20
Vigesimal
6e6c49
36
Base36
cso0p
md5
74b9cb589d81f1f2e59862d37837055a
sha1
78ae6f9d56f49f31921c17347d3ccee071fc5ccc
sha256
83793094b798e36bdabeb0ac8638becd5bc0f15025ebce49b3b015ba6feb64a0
sha512
26e02785099c98254b98b0dd56b60269d2c8d1e4022c17c99295dff49d4f95445f66d5d53eeaf676420cc570d4a9df88a0f074209880674934d8a8bc925bc791
ripemd-160
5f108c8e9653f2a9f45dd6a7addc9e252a8359ff
Diameter
42985778
Circumference
135043804.37364
Area
1.4512407487702E+15
Volume
4.1588475100793E+22
Surface area
5.8049629950808E+15
Circumference
135043804.37364
Perimeter
85971556
Area
461944277566321
Diagonal
30395535.11838
Surface area
2771665665397926
Volume
9.9285170819181E+21
Space diagonal
37226775.749438
Perimeter
64478667
Area
2.0002773975264E+14
Altitude
18613387.874719
Surface area
2.0002773975264E+14
Volume
1.1700869592918E+21
Height
10131845.03946