21497851 is an odd 8-digits composite number following 21497850
and preceding 21497852 . In scientific notation, it is written as 2.1497851 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 20710080 positive integers (up to 21497851) that are relatively prime to 21497851.
21497851 has 8 divisors, whose sum is 22297184
The reverse of 21497851 is 15879412
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million four hundred ninety-seven thousand eight hundred fifty-one
Scientific notation
2.1497851 × 10^7
Engineering notation
2.1497851 × 10^6
Prime Factorization
103 × 37 × 5641
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21497851
Product of the distinct prime numbers
The prime factorization of 21497851 is 103 × 37 × 5641.
Since it has a total of 3 prime factors.
5 , 7 , 48 , 18 , 978 , 689 , 8802 , 7645 , 43512 , 57550 , 136480 , 146448 , 5813596 , 5561420 , 87965638 , 28823734 , 798969783 , 709310432 , 8845844997 , 2076995151
n×2
42995702
n×3
64493553
n×4
85991404
n×5
107489255
n÷2
10748925.5
n÷3
7165950.3333333
n÷3
5374462.75
n÷5
4299570.2
n2
462157597618201
n3
9.935395172114E+21
n4
2.1358964503623E+29
n5
4.5917183641317E+36
2 √n
4636.5775093273
3 √n
278.05562349884
4 √n
68.092418882922
5 √n
29.273793819875
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
-21497850
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 21497851 can be divided by 8 positive divisors.
The sum of these divisors (counting 21497851) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000011111111011
3
Ternary
1111110012111201
4
Quaternary
1102000133323
5
Quinary
21000412401
6
Senary
2044435031
8
Octal
122003773
10
Decimal
21497851
12
Duodecimal
7248a77
16
Hexadecimal
14807fb
20
Vigesimal
6e74cb
36
Base36
csruj
md5
01509aed94dcaa6e52837ab13123262c
sha1
c2c883f05d146bf5b69a1dd2fe2a78a2e7adc407
sha256
d0749b5b8ca391bdf6e0d86ae870b5e2f9327f3e5be784c930d8413ead9fd9aa
sha512
9400d0332e762953e668485fc64cb4edc1f59b1dc59949552ffcb524a47f31026ccfdee1b8972c01ecd821710e05ad16197d0176c6716d11bba86f63484543f7
ripemd-160
cfe095d7b61c3c4e80fac601176776ea39f9f852
Diameter
42995702
Circumference
135074981.53914
Area
1.451910913478E+15
Volume
4.1617285977633E+22
Surface area
5.8076436539122E+15
Circumference
135074981.53914
Perimeter
85991404
Area
462157597618201
Diagonal
30402552.446076
Surface area
2772945585709206
Volume
9.935395172114E+21
Space diagonal
37235370.185545
Perimeter
64493553
Area
2.0012011004467E+14
Altitude
18617685.092773
Surface area
2.0012011004467E+14
Volume
1.170897549995E+21
Height
10134184.148692