21542408 is an even 8-digits composite number following 21542407
and preceding 21542409 . In scientific notation, it is written as 2.1542408 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 8 positive divisors.
There are 10771200 positive integers (up to 21542408) that are relatively prime to 21542408.
21542408 has 8 divisors, whose sum is 40392030
The reverse of 21542408 is 80424512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million five hundred forty-two thousand four hundred eight
Scientific notation
2.1542408 × 10^7
Engineering notation
2.1542408 × 10^6
Prime Factorization
2 × 2 × 2 × 2692801
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5385602
Product of the distinct prime numbers
The prime factorization of 21542408 is 2 × 2 × 2 × 2692801.
Since it has a total of 4 prime factors.
4 , 3 , 51 , 87 , 390 , 974 , 2608 , 3220 , 61136 , 58877 , 673678 , 898121 , 4990450 , 8969410 , 40822126 , 65036830 , 967043763 , 716311986 , 6885418323 , 775384818
n×2
43084816
n×3
64627224
n×4
86169632
n×5
107712040
n÷2
10771204
n÷3
7180802.6666667
n÷3
5385602
n÷5
4308481.6
n2
464075342438464
n3
9.9973003695491E+21
n4
2.1536592345938E+29
n5
4.6395005924587E+36
2 √n
4641.379967208
3 √n
278.24759268344
4 √n
68.127674018772
5 √n
29.285918495968
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
-21542407
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 21542408 can be divided by 8 positive divisors.
The sum of these divisors (counting 21542408) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001011011000001000
3
Ternary
1111112110121222
4
Quaternary
1102023120020
5
Quinary
21003324113
6
Senary
2045421212
8
Octal
122133010
10
Decimal
21542408
12
Duodecimal
726a808
16
Hexadecimal
148b608
20
Vigesimal
6ecg08
36
Base36
ctq88
md5
6b88ef822a15bc2a86acfc0b8b55ca36
sha1
6353d6ac8cf530c503fc01099d35896838307077
sha256
ef4f0c00195872791ce8af4bbb82bf595dbf1a9694c527769712cd19df267deb
sha512
ebf6a2082e5677efa82c7ef7183443031e2346c37646c08d1f5a2b9cf2b86e7ac3a569058c6058a18913381721c1ff16c6498e9fcb4ac0a3390ba6412c76c58e
ripemd-160
0c590d420f82c2c6abc1b2b78d67dbaf105f4aed
Diameter
43084816
Circumference
135354941.42687
Area
1.4579356865168E+15
Volume
4.1876593862275E+22
Surface area
5.8317427460674E+15
Circumference
135354941.42687
Perimeter
86169632
Area
464075342438464
Diagonal
30465565.559775
Surface area
2784452054630784
Volume
9.9973003695491E+21
Space diagonal
37312545.173378
Perimeter
64627224
Area
2.0095051791084E+14
Altitude
18656272.586689
Surface area
2.0095051791084E+14
Volume
1.1781931474778E+21
Height
10155188.519925