68156920 is an even 8-digits composite number following 68156919
and preceding 68156921 . In scientific notation, it is written as 6.8156920 × 10^7.
The sum of its digits is 37. It has a total of 6 prime factors and 32 positive divisors.
There are 25165440 positive integers (up to 68156920) that are relatively prime to 68156920.
68156920 has 32 divisors, whose sum is 165150720
The reverse of 68156920 is 02965186
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
sixty-eight million one hundred fifty-six thousand nine hundred twenty
Scientific notation
6.8156920 × 10^7
Engineering notation
6.8156920 × 10^6
Prime Factorization
2 × 2 × 2 × 13 × 5 × 131071
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
17039230
Product of the distinct prime numbers
The prime factorization of 68156920 is 2 × 2 × 2 × 13 × 5 × 131071.
Since it has a total of 6 prime factors.
3 , 4 , 59 , 16 , 262 , 536 , 9798 , 9331 , 93981 , 68634 , 187829 , 679930 , 1334754 , 1468979 , 91863216 , 93091508 , 63696627 , 806750877 , 2520956238 , 4831842656
n×2
136313840
n×3
204470760
n×4
272627680
n×5
340784600
n÷2
34078460
n÷3
22718973.333333
n÷3
17039230
n÷5
13631384
n2
4645365743886400
n3
3.1661382137681E+23
n4
2.1579422894473E+31
n5
1.4707869998648E+39
2 √n
8255.7204410033
3 √n
408.47923630533
4 √n
90.860995157456
5 √n
36.872449653684
1 , 2 , 4 , 5 , 8 , 10 , 13 , 20 , 26 , 40 , 52 , 65 , 104 , 130 , 260 , 520 , 131071 , 262142 , 524284 , 655355 , 1048568 , 1310710 , 1703923 , 2621420 , 3407846 , 5242840 , 6815692 , 8519615 , 13631384 , 17039230 , 34078460 , 68156920
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68156919
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68156920 can be divided by 32 positive divisors.
The sum of these divisors (counting 68156920) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100000011111111110111111000
3
Ternary
11202020201201101
4
Quaternary
10003333313320
5
Quinary
114422010140
6
Senary
10432501144
8
Octal
403776770
10
Decimal
68156920
12
Duodecimal
1a9aa7b4
16
Hexadecimal
40ffdf8
20
Vigesimal
115jc60
36
Base36
14ku7s
md5
92cf4cdedbbf442f964be952712e3928
sha1
13e57ab073e7230584bedbaa196c8123697aeda0
sha256
7860c7726e7b544bf5f897716507765b73b0a86ba67e489aba34a8467e51d916
sha512
cb708d8fcc8fded46a487637ff4197ab19548f22027fa3192696be51fc97ed3e9a2651ceef79a71d18ecee99e95808960db73ceebb2753c007b2c6d4b48c0198
ripemd-160
ee921883f088a617b64178fb1caceae1c250603d
Diameter
136313840
Circumference
428242558.32661
Area
1.4593846894231E+16
Volume
1.3262288736832E+24
Surface area
5.8375387576925E+16
Circumference
428242558.32661
Perimeter
272627680
Area
4645365743886400
Diagonal
96388440.633578
Surface area
27872194463318400
Volume
3.1661382137681E+23
Space diagonal
118051248.32741
Perimeter
204470760
Area
2.0115023720378E+15
Altitude
59025624.163704
Surface area
2.0115023720378E+15
Volume
3.7313296685488E+22
Height
32129480.211193