68991641 is an odd 8-digits composite number following 68991640
and preceding 68991642 . In scientific notation, it is written as 6.8991641 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 65360484 positive integers (up to 68991641) that are relatively prime to 68991641.
68991641 has 4 divisors, whose sum is 72622800
The reverse of 68991641 is 14619986
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
sixty-eight million nine hundred ninety-one thousand six hundred forty-one
Scientific notation
6.8991641 × 10^7
Engineering notation
6.8991641 × 10^6
Prime Factorization
19 × 3631139
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68991641
Product of the distinct prime numbers
The prime factorization of 68991641 is 19 × 3631139.
Since it has a total of 2 prime factors.
5 , 4 , 15 , 19 , 529 , 778 , 6101 , 7010 , 38640 , 47620 , 766126 , 627627 , 734108 , 3863566 , 21820315 , 10613046 , 796644352 , 288469684 , 3389903607 , 3681293255
n×2
137983282
n×3
206974923
n×4
275966564
n×5
344958205
n÷2
34495820.5
n÷3
22997213.666667
n÷3
17247910.25
n÷5
13798328.2
n2
4759846527872881
n3
3.283896228661E+23
n4
2.2656138968904E+31
n5
1.5630842061887E+39
2 √n
8306.1206950056
3 √n
410.14002950445
4 √n
91.137921278717
5 √n
36.962326161353
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
-68991640
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 68991641 can be divided by 4 positive divisors.
The sum of these divisors (counting 68991641) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000111001011101010011001
3
Ternary
11210211010201222
4
Quaternary
10013023222121
5
Quinary
120130213031
6
Senary
10502421425
8
Octal
407135231
10
Decimal
68991641
12
Duodecimal
1b131875
16
Hexadecimal
41cba99
20
Vigesimal
11b3j21
36
Base36
152qah
md5
79c5f4f9d87d28685a3245651fb5a739
sha1
1d3d13bf94279ec3d7838c65d3406f4c01bc8361
sha256
259850195453fa48a870b293d6fa19645a7a83c4f0f45aa8b65557d40ec889ca
sha512
b3c91d72b79d17289112efa216c8172c68e64b7071861ce327599fa206e5155c79774f2c9fe97c2118ba5275a11d3cbb2ca0a4a93fc5c05d82c8cf29954e56ee
ripemd-160
fde38f2f5bc1153ad504860f98598708b61f9bf8
Diameter
137983282
Circumference
433487265.04941
Area
1.495349888418E+16
Volume
1.375555235615E+24
Surface area
5.9813995536721E+16
Circumference
433487265.04941
Perimeter
275966564
Area
4759846527872881
Diagonal
97568914.392576
Surface area
28559079167237286
Volume
3.283896228661E+23
Space diagonal
119497027.50955
Perimeter
206974923
Area
2.0610740056265E+15
Altitude
59748513.754776
Surface area
2.0610740056265E+15
Volume
3.8701088199986E+22
Height
32522971.464192