68161749 is an odd 8-digits composite number following 68161748
and preceding 68161750 . In scientific notation, it is written as 6.8161749 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 45441164 positive integers (up to 68161749) that are relatively prime to 68161749.
68161749 has 4 divisors, whose sum is 90882336
The reverse of 68161749 is 94716186
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-eight million one hundred sixty-one thousand seven hundred forty-nine
Scientific notation
6.8161749 × 10^7
Engineering notation
6.8161749 × 10^6
Prime Factorization
3 × 22720583
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68161749
Product of the distinct prime numbers
The prime factorization of 68161749 is 3 × 22720583.
Since it has a total of 2 prime factors.
4 , 8 , 45 , 77 , 790 , 546 , 5912 , 115 , 11385 , 83681 , 526513 , 536739 , 7125874 , 938431 , 15514895 , 80902331 , 324786965 , 704464200 , 5016789913 , 8403684137
n×2
136323498
n×3
204485247
n×4
272646996
n×5
340808745
n÷2
34080874.5
n÷3
22720583
n÷3
17040437.25
n÷5
13632349.8
n2
4646024026739001
n3
3.1668112355855E+23
n4
2.1585539257036E+31
n5
1.4713081088677E+39
2 √n
8256.0128996992
3 √n
408.48888315972
4 √n
90.862604517476
5 √n
36.872972130384
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
-68161748
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 68161749 can be divided by 4 positive divisors.
The sum of these divisors (counting 68161749) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000100000001000011010101
3
Ternary
11202020222100020
4
Quaternary
10010001003111
5
Quinary
114422133444
6
Senary
10432535353
8
Octal
404010325
10
Decimal
68161749
12
Duodecimal
1a9b1559
16
Hexadecimal
41010d5
20
Vigesimal
1160479
36
Base36
14kxxx
md5
c4a4c7d2dfab42ea072b9a1565642c30
sha1
db1076ed01d0acb3363259da5790a10002997e2b
sha256
208c7321e43f5adf62edbf5b6bcd7e99729ee6a3ca7ab6c7d160c5e869e8b19e
sha512
3b03b0c95f073bffae5c1c8be642ac286495e840a5bc51d57444cbf581cdd5d872bb08083347f7ba1d0beeb6f891298991d1d2c6bafefe0ad70942e22b893401
ripemd-160
ef6a3a65261ac3f546390a4dcf2fde0bc8f90298
Diameter
136323498
Circumference
428272899.82846
Area
1.4595914950805E+16
Volume
1.3265107884028E+24
Surface area
5.838365980322E+16
Circumference
428272899.82846
Perimeter
272646996
Area
4646024026739001
Diagonal
96395269.870871
Surface area
27876144160434006
Volume
3.1668112355855E+23
Space diagonal
118059612.40076
Perimeter
204485247
Area
2.0117874168744E+15
Altitude
59029806.200379
Surface area
2.0117874168744E+15
Volume
3.7321228323671E+22
Height
32131756.623624