21492455 is an odd 8-digits composite number following 21492454
and preceding 21492456 . In scientific notation, it is written as 2.1492455 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 16639200 positive integers (up to 21492455) that are relatively prime to 21492455.
21492455 has 8 divisors, whose sum is 26623104
The reverse of 21492455 is 55429412
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred ninety-two thousand four hundred fifty-five
Scientific notation
2.1492455 × 10^7
Engineering notation
2.1492455 × 10^6
Prime Factorization
31 × 5 × 138661
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492455
Product of the distinct prime numbers
The prime factorization of 21492455 is 31 × 5 × 138661.
Since it has a total of 3 prime factors.
3 , 8 , 92 , 23 , 965 , 503 , 7552 , 2145 , 25633 , 97963 , 434664 , 373606 , 6242448 , 5067768 , 61818106 , 47700970 , 769219148 , 455953226 , 9347101317 , 3396838603
n×2
42984910
n×3
64477365
n×4
85969820
n×5
107462275
n÷2
10746227.5
n÷3
7164151.6666667
n÷3
5373113.75
n÷5
4298491
n2
461925621927025
n3
9.9279156426136E+21
n4
2.1337528019267E+29
n5
4.5859586076533E+36
2 √n
4635.9955780824
3 √n
278.03235739509
4 √n
68.088145650197
5 √n
29.272324117129
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
-21492454
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 21492455 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492455) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111001011100111
3
Ternary
1111102221002212
4
Quaternary
1101333023213
5
Quinary
21000224310
6
Senary
2044354035
8
Octal
121771347
10
Decimal
21492455
12
Duodecimal
724591b
16
Hexadecimal
147f2e7
20
Vigesimal
6e6b2f
36
Base36
csnon
md5
fa37c0b93d0d6436b19c832d5f938490
sha1
6147e8f71c1197afea32a5bf022262a869d7076c
sha256
5d12b5913521f4ba0cbeb84ab147c990bfbabfe4ed61a602f0ecaa39179a1083
sha512
a013c75644bb45aab5078cae10ffd8ea385ac0c6b823832d0dbd27d16e0f3de3b4f6d38cfc66bb17fe9a66c5d8525a7d132fc3c51379abcbb25e2d9529312f88
ripemd-160
cff11f55bb6857aa3ca03552bbbaafd7eb4d020f
Diameter
42984910
Circumference
135041077.47122
Area
1.4511821403508E+15
Volume
4.1585955797725E+22
Surface area
5.8047285614034E+15
Circumference
135041077.47122
Perimeter
85969820
Area
461925621927025
Diagonal
30394921.349693
Surface area
2771553731562150
Volume
9.9279156426136E+21
Space diagonal
37226024.039388
Perimeter
64477365
Area
2.0001966162386E+14
Altitude
18613012.019694
Surface area
2.0001966162386E+14
Volume
1.17001607899E+21
Height
10131640.449898