21502021 is an odd 8-digits composite number following 21502020
and preceding 21502022 . In scientific notation, it is written as 2.1502021 × 10^7.
The sum of its digits is 13. It has a total of 4 prime factors and 12 positive divisors.
There are 20227200 positive integers (up to 21502021) that are relatively prime to 21502021.
21502021 has 12 divisors, whose sum is 22829580
The reverse of 21502021 is 12020512
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty-one million five hundred two thousand twenty-one
Scientific notation
2.1502021 × 10^7
Engineering notation
2.1502021 × 10^6
Prime Factorization
29 × 43 × 43 × 401
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
500047
Product of the distinct prime numbers
The prime factorization of 21502021 is 29 × 43 × 43 × 401.
Since it has a total of 4 prime factors.
10 , 7 , 89 , 48 , 370 , 293 , 7322 , 2976 , 39299 , 51655 , 817605 , 213734 , 5718660 , 8093410 , 3945146 , 7883424 , 411876644 , 879513739 , 3726259135 , 967305239
n×2
43004042
n×3
64506063
n×4
86008084
n×5
107510105
n÷2
10751010.5
n÷3
7167340.3333333
n÷3
5375505.25
n÷5
4300404.2
n2
462336907084441
n3
9.9411778852047E+21
n4
2.1375541565241E+29
n5
4.5961734362218E+36
2 √n
4637.0271726614
3 √n
278.07360075291
4 √n
68.095720663353
5 √n
29.27492939617
1 , 29 , 43 , 401 , 1247 , 1849 , 11629 , 17243 , 53621 , 500047 , 741449 , 21502021
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21502020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21502021 can be divided by 12 positive divisors.
The sum of these divisors (counting 21502021) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010000001100001000101
3
Ternary
1111110102020011
4
Quaternary
1102001201011
5
Quinary
21001031041
6
Senary
2044510221
8
Octal
122014105
10
Decimal
21502021
12
Duodecimal
724b371
16
Hexadecimal
1481845
20
Vigesimal
6e7f11
36
Base36
csv2d
md5
c5834bf62786f4ae8785c31d26563393
sha1
633aadb129a17080b02a92c6cc204d3aafb396bd
sha256
0215c09fc138e81ac5d3c578e798328affa5edf7819bd7337ea6281901712f88
sha512
06ce77a3bd39a56788671a6b0268fcefae874505ee459dfae38a1071e42ac0420a741c47280830471c4d0450b9291e176b80bb93ab8f5cb3ca3646f27a1ce59f
ripemd-160
4ceed47d6d9da394df46474719180e5f18400d08
Diameter
43004042
Circumference
135101182.42187
Area
1.4524742307799E+15
Volume
4.1641508549585E+22
Surface area
5.8098969231196E+15
Circumference
135101182.42187
Perimeter
86008084
Area
462336907084441
Diagonal
30408449.716631
Surface area
2774021442506646
Volume
9.9411778852047E+21
Space diagonal
37242592.837413
Perimeter
64506063
Area
2.0019775332113E+14
Altitude
18621296.418706
Surface area
2.0019775332113E+14
Volume
1.1715790492683E+21
Height
10136149.905544