21249939 is an odd 8-digits composite number following 21249938
and preceding 21249940 . In scientific notation, it is written as 2.1249939 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 14139360 positive integers (up to 21249939) that are relatively prime to 21249939.
21249939 has 8 divisors, whose sum is 28387792
The reverse of 21249939 is 93994212
Previous prime number is 541
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million two hundred forty-nine thousand nine hundred thirty-nine
Scientific notation
2.1249939 × 10^7
Engineering notation
2.1249939 × 10^6
Prime Factorization
3 × 541 × 13093
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21249939
Product of the distinct prime numbers
The prime factorization of 21249939 is 3 × 541 × 13093.
Since it has a total of 3 prime factors.
4 , 10 , 73 , 75 , 859 , 822 , 2295 , 8041 , 68124 , 71062 , 267059 , 724764 , 6340350 , 8541550 , 57487129 , 23260802 , 734295302 , 913096710 , 9200561324 , 4526613242
n×2
42499878
n×3
63749817
n×4
84999756
n×5
106249695
n÷2
10624969.5
n÷3
7083313
n÷3
5312484.75
n÷5
4249987.8
n2
451559907503721
n3
9.5956204892997E+21
n4
2.0390635006477E+29
n5
4.332997500589E+36
2 √n
4609.7656122627
3 √n
276.98264780284
4 √n
67.895254710935
5 √n
29.205963461278
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
-21249938
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 21249939 can be divided by 8 positive divisors.
The sum of these divisors (counting 21249939) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000011111110010011
3
Ternary
1110222121102210
4
Quaternary
1101003332103
5
Quinary
20414444224
6
Senary
2035243203
8
Octal
121037623
10
Decimal
21249939
12
Duodecimal
7149503
16
Hexadecimal
1443f93
20
Vigesimal
6cg4gj
36
Base36
cngk3
md5
87afe4e7cdac6f67294f2aa4adb9f2b0
sha1
8863545aa7c97dbe07ff05d33d6b971e36f2376b
sha256
f43cd1dffca968186f0771792bfd508d20726a7e7fe017687506770ec5628aa2
sha512
eb25a241e40bcadfac4749e8bcf63f3a8ac2b36fc6590e40d3482868acad151853cb43d854432def14905e8ddf4be5937283ba39d9188359fd497907b5c56d2a
ripemd-160
67706a83912a037f0d6868f3138fa9242f341751
Diameter
42499878
Circumference
133517304.50326
Area
1.4186172880694E+15
Volume
4.0194041114426E+22
Surface area
5.6744691522775E+15
Circumference
133517304.50326
Perimeter
84999756
Area
451559907503721
Diagonal
30051951.933401
Surface area
2709359445022326
Volume
9.5956204892997E+21
Space diagonal
36805974.005739
Perimeter
63749817
Area
1.9553117561439E+14
Altitude
18402987.00287
Surface area
1.9553117561439E+14
Volume
1.1308547196127E+21
Height
10017317.311134