21491746 is an even 8-digits composite number following 21491745
and preceding 21491747 . In scientific notation, it is written as 2.1491746 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 10455408 positive integers (up to 21491746) that are relatively prime to 21491746.
21491746 has 8 divisors, whose sum is 33109020
The reverse of 21491746 is 64719412
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred ninety-one thousand seven hundred forty-six
Scientific notation
2.1491746 × 10^7
Engineering notation
2.1491746 × 10^6
Prime Factorization
2 × 37 × 290429
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491746
Product of the distinct prime numbers
The prime factorization of 21491746 is 2 × 37 × 290429.
Since it has a total of 3 prime factors.
2 , 2 , 16 , 100 , 87 , 14 , 8469 , 9841 , 54457 , 43661 , 199119 , 653560 , 3473646 , 6057296 , 12634950 , 61224650 , 916571475 , 854585219 , 1623709607 , 1436156513
n×2
42983492
n×3
64475238
n×4
85966984
n×5
107458730
n÷2
10745873
n÷3
7163915.3333333
n÷3
5372936.5
n÷5
4298349.2
n2
461895146128516
n3
9.9269331592269E+21
n4
2.1334712601708E+29
n5
4.5852022421891E+36
2 √n
4635.9191105972
3 √n
278.02930008794
4 √n
68.087584114853
5 √n
29.272130985617
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
-21491745
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 21491746 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491746) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111000000100010
3
Ternary
1111102220010121
4
Quaternary
1101333000202
5
Quinary
21000213441
6
Senary
2044350454
8
Octal
121770042
10
Decimal
21491746
12
Duodecimal
724542a
16
Hexadecimal
147f022
20
Vigesimal
6e6976
36
Base36
csn4y
md5
5ba2bec29804603c832a536185d548ff
sha1
bf1d620257e01e359857f3e885d73ea9f6296d8c
sha256
a110b0ba896cc00ec08842a232faf25fe557c4a405dc02c5909b0b61c4066f13
sha512
2e5ca7f5a871e351d2ae85fc2d6bca23058390957715d9b2bb0c1d6926eb3ed413839755e5e7dad6dc14b4720b30240cbda3661ea4fef7e0a92cf2d69565e20a
ripemd-160
c09bf97fa7a37403936c662ef668561458f2dafc
Diameter
42983492
Circumference
135036622.69284
Area
1.4510863978061E+15
Volume
4.1581840380939E+22
Surface area
5.8043455912245E+15
Circumference
135036622.69284
Perimeter
85966984
Area
461895146128516
Diagonal
30393918.672278
Surface area
2771370876771096
Volume
9.9269331592269E+21
Space diagonal
37224796.015365
Perimeter
64475238
Area
2.0000646521601E+14
Altitude
18612398.007683
Surface area
2.0000646521601E+14
Volume
1.1699002922125E+21
Height
10131306.224093