21978051 is an odd 8-digits composite number following 21978050
and preceding 21978052 . In scientific notation, it is written as 2.1978051 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 14652032 positive integers (up to 21978051) that are relatively prime to 21978051.
21978051 has 4 divisors, whose sum is 29304072
The reverse of 21978051 is 15087912
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million nine hundred seventy-eight thousand fifty-one
Scientific notation
2.1978051 × 10^7
Engineering notation
2.1978051 × 10^6
Prime Factorization
3 × 7326017
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21978051
Product of the distinct prime numbers
The prime factorization of 21978051 is 3 × 7326017.
Since it has a total of 2 prime factors.
6 , 6 , 89 , 35 , 239 , 600 , 3159 , 5967 , 59368 , 48445 , 80794 , 542732 , 4593372 , 6353298 , 88722144 , 90140797 , 468176596 , 549298517 , 9077951168 , 6508941609
n×2
43956102
n×3
65934153
n×4
87912204
n×5
109890255
n÷2
10989025.5
n÷3
7326017
n÷3
5494512.75
n÷5
4395610.2
n2
483034725758601
n3
1.0616161837494E+22
n4
2.3332254628869E+29
n5
5.1279748217826E+36
2 √n
4688.0754046837
3 √n
280.11071726896
4 √n
68.469521720863
5 √n
29.403419182229
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
-21978050
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 21978051 can be divided by 4 positive divisors.
The sum of these divisors (counting 21978051) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011110101101111000011
3
Ternary
1112100121012220
4
Quaternary
1103311233003
5
Quinary
21111244201
6
Senary
2103022123
8
Octal
123655703
10
Decimal
21978051
12
Duodecimal
743a943
16
Hexadecimal
14f5bc3
20
Vigesimal
6h752b
36
Base36
d32df
md5
eb60ffc568a06aaa61a11435a3aeb0e5
sha1
2995bbdb96e0fb090357ceb8287c04086519dc33
sha256
39e0d0d09ac43a2c50f8879508892f4f7cb4601219fc5ad2f0ad9e63307dd844
sha512
d43a97270f8a262705ea94447434703ab6ad06c604d1b4f1ca40ebd4adae1895796f2062ac288035037a774c51532900c74d16a00e364786af75f18035b1c0e1
ripemd-160
a6c78fba4f50f367eb7920278a5cedadbb299821
Diameter
43956102
Circumference
138092167.12364
Area
1.517498345872E+15
Volume
4.446887471732E+22
Surface area
6.0699933834879E+15
Circumference
138092167.12364
Perimeter
87912204
Area
483034725758601
Diagonal
31081657.798728
Surface area
2898208354551606
Volume
1.0616161837494E+22
Space diagonal
38067100.98334
Perimeter
65934153
Area
2.091601717085E+14
Altitude
19033550.49167
Surface area
2.091601717085E+14
Volume
1.2511266709109E+21
Height
10360552.599576