68722021 is an odd 8-digits composite number following 68722020
and preceding 68722022 . In scientific notation, it is written as 6.8722021 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 67852044 positive integers (up to 68722021) that are relatively prime to 68722021.
68722021 has 4 divisors, whose sum is 69592000
The reverse of 68722021 is 12022786
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
sixty-eight million seven hundred twenty-two thousand twenty-one
Scientific notation
6.8722021 × 10^7
Engineering notation
6.8722021 × 10^6
Prime Factorization
79 × 869899
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68722021
Product of the distinct prime numbers
The prime factorization of 68722021 is 79 × 869899.
Since it has a total of 2 prime factors.
6 , 5 , 76 , 21 , 381 , 799 , 3215 , 5934 , 94500 , 70965 , 817150 , 42119 , 2476631 , 9456470 , 540754 , 39174181 , 901412986 , 640006096 , 5102297943 , 33874947
n×2
137444042
n×3
206166063
n×4
274888084
n×5
343610105
n÷2
34361010.5
n÷3
22907340.333333
n÷3
17180505.25
n÷5
13744404.2
n2
4722716170324441
n3
3.2455459983408E+23
n4
2.2304048025444E+31
n5
1.5327792567896E+39
2 √n
8289.8746070131
3 √n
409.60505493601
4 √n
91.048748519752
5 √n
36.933391068889
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
-68722020
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 68722021 can be divided by 4 positive divisors.
The sum of these divisors (counting 68722021) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000110001001110101100101
3
Ternary
11210022102220001
4
Quaternary
10012021311211
5
Quinary
120043101041
6
Senary
10452541301
8
Octal
406116545
10
Decimal
68722021
12
Duodecimal
1b021831
16
Hexadecimal
4189d65
20
Vigesimal
119a511
36
Base36
14wy91
md5
12f3966d3fc9575811e831e9b095fdc4
sha1
9d48c82ae5f5644d9f0d69b7a586e0794019b282
sha256
e5fff65d56cb69c9972728480a2a798bae853690933b5e146b8160252e4d3126
sha512
fcd6460471d2068f8d097ada0e9d4509b292db37bbae0a04accd48ec7b1b3b8d742e9136a9ca7e1f42fda693088f0e73065e4d02b8eb8e298a5b901e8e89481b
ripemd-160
0fd5cad17073fb34c8d4bfade33c3c3dd867c5a7
Diameter
137444042
Circumference
431793192.62689
Area
1.4836850425681E+16
Volume
1.3594911287033E+24
Surface area
5.9347401702724E+16
Circumference
431793192.62689
Perimeter
274888084
Area
4722716170324441
Diagonal
97187614.131889
Surface area
28336297021946646
Volume
3.2455459983408E+23
Space diagonal
119030031.97082
Perimeter
206166063
Area
2.0449960891823E+15
Altitude
59515015.985408
Surface area
2.0449960891823E+15
Volume
3.8249126401327E+22
Height
32395871.377296