21542371 is an odd 8-digits composite number following 21542370
and preceding 21542372 . In scientific notation, it is written as 2.1542371 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20408544 positive integers (up to 21542371) that are relatively prime to 21542371.
21542371 has 4 divisors, whose sum is 22676200
The reverse of 21542371 is 17324512
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million five hundred forty-two thousand three hundred seventy-one
Scientific notation
2.1542371 × 10^7
Engineering notation
2.1542371 × 10^6
Prime Factorization
19 × 1133809
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21542371
Product of the distinct prime numbers
The prime factorization of 21542371 is 19 × 1133809.
Since it has a total of 2 prime factors.
1 , 4 , 43 , 54 , 876 , 29 , 7605 , 5671 , 76425 , 15816 , 817075 , 413640 , 7135331 , 445649 , 19049976 , 75183883 , 542717371 , 85528319 , 1271268432 , 4419743038
n×2
43084742
n×3
64627113
n×4
86169484
n×5
107711855
n÷2
10771185.5
n÷3
7180790.3333333
n÷3
5385592.75
n÷5
4308474.2
n2
464073748301641
n3
9.9972488572746E+21
n4
2.1536444386273E+29
n5
4.6394607498997E+36
2 √n
4641.3759813228
3 √n
278.24743338266
4 √n
68.12764476571
5 √n
29.285908435999
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21542370
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21542371 can be divided by 4 positive divisors.
The sum of these divisors (counting 21542371) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001011010111100011
3
Ternary
1111112110120121
4
Quaternary
1102023113203
5
Quinary
21003323441
6
Senary
2045421111
8
Octal
122132743
10
Decimal
21542371
12
Duodecimal
726a797
16
Hexadecimal
148b5e3
20
Vigesimal
6ecfib
36
Base36
ctq77
md5
5109deeaf5b1302bb5a600e4a12fed27
sha1
1da8075919f11b215c1d22cb7728ba27b62048c6
sha256
7977b3ed9b4a7cb5073da426642b774ec3ca3796fc53a415ad1d133493391bd5
sha512
23d131cb622e6ee18c8c873aba4aa52260a40d31e726eb1f3f14fa61ee923abe55748cef7dc38c775062b8cc1846ae846dfe71879ee55221d83f57076de2412d
ripemd-160
f111384de4f1d8e96cbe9fb272ebc551a92e6086
Diameter
43084742
Circumference
135354708.94901
Area
1.4579306783883E+15
Volume
4.1876378088164E+22
Surface area
5.8317227135533E+15
Circumference
135354708.94901
Perimeter
86169484
Area
464073748301641
Diagonal
30465513.233873
Surface area
2784442489809846
Volume
9.9972488572746E+21
Space diagonal
37312481.087498
Perimeter
64627113
Area
2.0094982762934E+14
Altitude
18656240.543749
Surface area
2.0094982762934E+14
Volume
1.1781870766981E+21
Height
10155171.077958