68279945 is an odd 8-digits composite number following 68279944
and preceding 68279946 . In scientific notation, it is written as 6.8279945 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 54623952 positive integers (up to 68279945) that are relatively prime to 68279945.
68279945 has 4 divisors, whose sum is 81935940
The reverse of 68279945 is 54997286
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
sixty-eight million two hundred seventy-nine thousand nine hundred forty-five
Scientific notation
6.8279945 × 10^7
Engineering notation
6.8279945 × 10^6
Prime Factorization
5 × 13655989
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68279945
Product of the distinct prime numbers
The prime factorization of 68279945 is 5 × 13655989.
Since it has a total of 2 prime factors.
5 , 4 , 93 , 99 , 190 , 795 , 5776 , 3966 , 11467 , 6011 , 881461 , 952557 , 1902329 , 935727 , 24413098 , 99817551 , 253238063 , 193013188 , 167288744 , 4436650912
n×2
136559890
n×3
204839835
n×4
273119780
n×5
341399725
n÷2
34139972.5
n÷3
22759981.666667
n÷3
17069986.25
n÷5
13655989
n2
4662150889203025
n3
3.1833140629648E+23
n4
2.1735650913697E+31
n5
1.4841090489264E+39
2 √n
8263.1679760247
3 √n
408.72486043393
4 √n
90.901969043716
5 √n
36.885751197985
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
-68279944
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 68279945 can be divided by 4 positive divisors.
The sum of these divisors (counting 68279945) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000100011101111010001001
3
Ternary
11202110222110212
4
Quaternary
10010131322021
5
Quinary
114434424240
6
Senary
10435250505
8
Octal
404357211
10
Decimal
68279945
12
Duodecimal
1aa49a35
16
Hexadecimal
411de89
20
Vigesimal
116ejh5
36
Base36
14nh55
md5
0c492d6d8f24afbc03e83ad49e25e877
sha1
c6f91416d25e5eb4ba00113faef718bcda79ce5f
sha256
250e744b1458acbd13a28aa57c71d9c16f363511780683c2b4c721124e165414
sha512
2748d89376a1ebbd5d663157c3cd4de85ea78b17f4f1d34912531b9cec8482edddeced33242b5b4bf0135ecac991b3d7a67417b1f6125c4ba4fa8b86256e01c5
ripemd-160
6ac85835868be511d55210aaf619f7f4e293c890
Diameter
136559890
Circumference
429015547.19903
Area
1.4646578983447E+16
Volume
1.3334234765706E+24
Surface area
5.8586315933789E+16
Circumference
429015547.19903
Perimeter
273119780
Area
4662150889203025
Diagonal
96562424.257089
Surface area
27972905335218150
Volume
3.1833140629648E+23
Space diagonal
118264333.87801
Perimeter
204839835
Area
2.018770553163E+15
Altitude
59132166.939004
Surface area
2.018770553163E+15
Volume
3.7515716009482E+22
Height
32187474.752363