21492642 is an even 8-digits composite number following 21492641
and preceding 21492643 . In scientific notation, it is written as 2.1492642 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 7164212 positive integers (up to 21492642) that are relatively prime to 21492642.
21492642 has 8 divisors, whose sum is 42985296
The reverse of 21492642 is 24629412
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred ninety-two thousand six hundred forty-two
Scientific notation
2.1492642 × 10^7
Engineering notation
2.1492642 × 10^6
Prime Factorization
2 × 3 × 3582107
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492642
Product of the distinct prime numbers
The prime factorization of 21492642 is 2 × 3 × 3582107.
Since it has a total of 3 prime factors.
6 , 5 , 89 , 18 , 399 , 851 , 448 , 375 , 58798 , 41646 , 405403 , 667284 , 8666670 , 9203922 , 5420089 , 96606035 , 249103791 , 106998519 , 9720337967 , 6329354980
n×2
42985284
n×3
64477926
n×4
85970568
n×5
107463210
n÷2
10746321
n÷3
7164214
n÷3
5373160.5
n÷5
4298528.4
n2
461933660140164
n3
9.9281747851422E+21
n4
2.1338270637049E+29
n5
4.586158117012E+36
2 √n
4636.0157463063
3 √n
278.03316375404
4 √n
68.088293753819
5 √n
29.272375055056
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
-21492641
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 21492642 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492642) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111001110100010
3
Ternary
1111102221100210
4
Quaternary
1101333032202
5
Quinary
21000231032
6
Senary
2044354550
8
Octal
121771642
10
Decimal
21492642
12
Duodecimal
7245a56
16
Hexadecimal
147f3a2
20
Vigesimal
6e6bc2
36
Base36
csntu
md5
1b9220c769160257a4be53411f208f06
sha1
e09dc249e87ba5b1dd4775e3794c0351708a1406
sha256
81710c0534c400b1f5dbee971318475f02e2a7fab8ee9d2efe3872a54adce92b
sha512
de13a64c1c70d977e1caf7c78460beed8c98ff84da2ff19c55ab98bff7c7248e4cfb54e5499c3d1dbf620a7c04d606ba2b7b83ae11807523c04434a3322cc41b
ripemd-160
aec1cd49ddc3955e8e992a3bd041ad26b8336587
Diameter
42985284
Circumference
135042252.42687
Area
1.4512073931422E+15
Volume
4.1587041291411E+22
Surface area
5.8048295725687E+15
Circumference
135042252.42687
Perimeter
85970568
Area
461933660140164
Diagonal
30395185.80763
Surface area
2771601960840984
Volume
9.9281747851422E+21
Space diagonal
37226347.932889
Perimeter
64477926
Area
2.0002314227225E+14
Altitude
18613173.966444
Surface area
2.0002314227225E+14
Volume
1.1700466192299E+21
Height
10131728.602543