68506721 is an odd 8-digits composite number following 68506720
and preceding 68506722 . In scientific notation, it is written as 6.8506721 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 64774080 positive integers (up to 68506721) that are relatively prime to 68506721.
68506721 has 8 divisors, whose sum is 69936000
The reverse of 68506721 is 12760586
Previous prime number is 4699
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
sixty-eight million five hundred six thousand seven hundred twenty-one
Scientific notation
6.8506721 × 10^7
Engineering notation
6.8506721 × 10^6
Prime Factorization
61 × 4699 × 239
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68506721
Product of the distinct prime numbers
The prime factorization of 68506721 is 61 × 4699 × 239.
Since it has a total of 3 prime factors.
1 , 1 , 98 , 31 , 202 , 284 , 5183 , 8343 , 70746 , 49409 , 557470 , 421281 , 1317584 , 910987 , 76354329 , 30523374 , 137342208 , 431102474 , 881415996 , 6499478849
n×2
137013442
n×3
205520163
n×4
274026884
n×5
342533605
n÷2
34253360.5
n÷3
22835573.666667
n÷3
17126680.25
n÷5
13701344.2
n2
4693170822171841
n3
3.2151374411987E+23
n4
2.2025852366085E+31
n5
1.5089189228306E+39
2 √n
8276.8786991232
3 √n
409.17685534438
4 √n
90.977352671548
5 √n
36.910220205703
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
-68506720
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 68506721 can be divided by 8 positive divisors.
The sum of these divisors (counting 68506721) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000101010101010001100001
3
Ternary
11202220111112222
4
Quaternary
10011111101201
5
Quinary
120014203341
6
Senary
10444200425
8
Octal
405252141
10
Decimal
68506721
12
Duodecimal
1ab39115
16
Hexadecimal
4155461
20
Vigesimal
11836g1
36
Base36
14sc4h
md5
74d0ac29a834db57b6b747b982acda68
sha1
473ea22aeaa00350a30d1616b1958b968ef34c4e
sha256
b910f6ac01b702733beeab6b4f29fb4655a3969de0844b0e4eb04d5e4afe7299
sha512
b76b8111682345e4dc4a308f027ef4643a0fe79cd6d4b01879b22f586c64941cecec7595cf20b63f2b88be2ab9fa5f38661e1530442d974e15db33ab58097643
ripemd-160
8943ce3cb7d27ad16d49370d21ecfb0dcfd482bf
Diameter
137013442
Circumference
430440422.83025
Area
1.4744030976977E+16
Volume
1.3467536220735E+24
Surface area
5.8976123907908E+16
Circumference
430440422.83025
Perimeter
274026884
Area
4693170822171841
Diagonal
96883133.95191
Surface area
28159024933031046
Volume
3.2151374411987E+23
Space diagonal
118657121.43195
Perimeter
205520163
Area
2.0322025781504E+15
Altitude
59328560.715973
Surface area
2.0322025781504E+15
Volume
3.7890758118639E+22
Height
32294377.98397