21492691 is an odd 8-digits composite number following 21492690
and preceding 21492692 . In scientific notation, it is written as 2.1492691 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 19417320 positive integers (up to 21492691) that are relatively prime to 21492691.
21492691 has 8 divisors, whose sum is 23592384
The reverse of 21492691 is 19629412
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred ninety-two thousand six hundred ninety-one
Scientific notation
2.1492691 × 10^7
Engineering notation
2.1492691 × 10^6
Prime Factorization
11 × 163 × 11987
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492691
Product of the distinct prime numbers
The prime factorization of 21492691 is 11 × 163 × 11987.
Since it has a total of 3 prime factors.
9 , 8 , 49 , 85 , 620 , 847 , 9699 , 5747 , 60316 , 38413 , 768293 , 347407 , 4049296 , 8461316 , 71681274 , 80967584 , 156415319 , 719813487 , 7051212123 , 7435980818
n×2
42985382
n×3
64478073
n×4
85970764
n×5
107463455
n÷2
10746345.5
n÷3
7164230.3333333
n÷3
5373172.75
n÷5
4298538.2
n2
461935766421481
n3
9.9282426895451E+21
n4
2.133846522994E+29
n5
4.5862103960135E+36
2 √n
4636.0210310136
3 √n
278.03337504518
4 √n
68.08833256156
5 √n
29.272388402369
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
-21492690
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 21492691 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492691) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111001111010011
3
Ternary
1111102221102121
4
Quaternary
1101333033103
5
Quinary
21000231231
6
Senary
2044355111
8
Octal
121771723
10
Decimal
21492691
12
Duodecimal
7245a97
16
Hexadecimal
147f3d3
20
Vigesimal
6e6beb
36
Base36
csnv7
md5
0a226358fb5173c968844c6453cb6fbb
sha1
6174216b6d682b3e82d3b2f794e5614189e84509
sha256
2b52ea70f9c5ba16f404f303265a07e301482da9ce27144eac750563f6acf16c
sha512
7b43e49005dc9d3d7f8f78804d67c055ac0f9bf330138abc72415b1149b7f958a792cb9e86880a93630cffa9ef6ea9bb9cacc657d1f8cbcaaf09d5f82f31d1d5
ripemd-160
43896edc187d99530ee0aec46b92a401194166c2
Diameter
42985382
Circumference
135042560.30295
Area
1.4512140102201E+15
Volume
4.1587325728708E+22
Surface area
5.8048560408804E+15
Circumference
135042560.30295
Perimeter
85970764
Area
461935766421481
Diagonal
30395255.104094
Surface area
2771614598528886
Volume
9.9282426895451E+21
Space diagonal
37226432.803378
Perimeter
64478073
Area
2.0002405431882E+14
Altitude
18613216.401689
Surface area
2.0002405431882E+14
Volume
1.1700546218405E+21
Height
10131751.701365