21491617 is an odd 8-digits composite number following 21491616
and preceding 21491618 . In scientific notation, it is written as 2.1491617 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 18313872 positive integers (up to 21491617) that are relatively prime to 21491617.
21491617 has 8 divisors, whose sum is 24705216
The reverse of 21491617 is 71619412
Previous prime number is 173
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four hundred ninety-one thousand six hundred seventeen
Scientific notation
2.1491617 × 10^7
Engineering notation
2.1491617 × 10^6
Prime Factorization
7 × 173 × 17747
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491617
Product of the distinct prime numbers
The prime factorization of 21491617 is 7 × 173 × 17747.
Since it has a total of 3 prime factors.
10 , 8 , 27 , 11 , 417 , 52 , 9809 , 7040 , 31412 , 71902 , 534363 , 856821 , 9250686 , 5052435 , 8767983 , 67977754 , 578395701 , 699912213 , 1588267385 , 2830166651
n×2
42983234
n×3
64474851
n×4
85966468
n×5
107458085
n÷2
10745808.5
n÷3
7163872.3333333
n÷3
5372904.25
n÷5
4298323.4
n2
461889601274689
n3
9.9267544068783E+21
n4
2.1334200376569E+29
n5
4.5850646349448E+36
2 √n
4635.9051974776
3 √n
278.02874381467
4 √n
68.087481944023
5 √n
29.272095845485
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
-21491616
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 21491617 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491617) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110111110100001
3
Ternary
1111102212221211
4
Quaternary
1101332332201
5
Quinary
21000212432
6
Senary
2044350121
8
Octal
121767641
10
Decimal
21491617
12
Duodecimal
7245341
16
Hexadecimal
147efa1
20
Vigesimal
6e690h
36
Base36
csn1d
md5
e128f989b8be811a36a789c0acc7ae0b
sha1
6d986066ca7e5e29da471b3b655c87930c4ae61a
sha256
9eb5a0c068cc75459db417b1537470ad36eb64f5b4470c5b5ff416d80fa0a99e
sha512
77f07f8796f5111aa7687803afa36ab156e218bb4606184616c15dae7c772819f0289d56bf3fce429871c2f81ad1ff4b8d35ec7a945e39c09bf5cf879f2e0679
ripemd-160
d9b8fdb7b9794fdbf8932b4a7a5e31bbf54272c2
Diameter
42983234
Circumference
135035812.16193
Area
1.4510689781341E+15
Volume
4.1581091624852E+22
Surface area
5.8042759125363E+15
Circumference
135035812.16193
Perimeter
85966468
Area
461889601274689
Diagonal
30393736.238728
Surface area
2771337607648134
Volume
9.9267544068783E+21
Space diagonal
37224572.580811
Perimeter
64474851
Area
2.0000406422387E+14
Altitude
18612286.290406
Surface area
2.0000406422387E+14
Volume
1.1698792260462E+21
Height
10131245.412909