68978090 is an even 8-digits composite number following 68978089
and preceding 68978091 . In scientific notation, it is written as 6.8978090 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 27569040 positive integers (up to 68978090) that are relatively prime to 68978090.
68978090 has 16 divisors, whose sum is 124260480
The reverse of 68978090 is 09087986
Previous prime number is 1879
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-eight million nine hundred seventy-eight thousand ninety
Scientific notation
6.8978090 × 10^7
Engineering notation
6.8978090 × 10^6
Prime Factorization
2 × 5 × 1879 × 3671
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68978090
Product of the distinct prime numbers
The prime factorization of 68978090 is 2 × 5 × 1879 × 3671.
Since it has a total of 4 prime factors.
10 , 8 , 45 , 5 , 184 , 550 , 4700 , 133 , 26405 , 58574 , 75565 , 246893 , 750177 , 600620 , 78544251 , 30940840 , 70505186 , 796654976 , 6805691656 , 433087689
n×2
137956180
n×3
206934270
n×4
275912360
n×5
344890450
n÷2
34489045
n÷3
22992696.666667
n÷3
17244522.5
n÷5
13795618
n2
4757976900048100
n3
3.2819615882944E+23
n4
2.2638344181391E+31
n5
1.561549742395E+39
2 √n
8305.3049311871
3 √n
410.11317518133
4 √n
91.133445733095
5 √n
36.960874055472
1 , 2 , 5 , 10 , 1879 , 3671 , 3758 , 7342 , 9395 , 18355 , 18790 , 36710 , 6897809 , 13795618 , 34489045 , 68978090
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68978089
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68978090 can be divided by 16 positive divisors.
The sum of these divisors (counting 68978090) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000111001000010110101010
3
Ternary
11210210110011002
4
Quaternary
10013020112222
5
Quinary
120124244330
6
Senary
10502235002
8
Octal
407102652
10
Decimal
68978090
12
Duodecimal
1b125a62
16
Hexadecimal
41c85aa
20
Vigesimal
11b254a
36
Base36
152fu2
md5
302f4ab0f94116cd35ab4ca7cb96eeb9
sha1
c984c125be5dcc1b4e8650a736f2c4d17e29b355
sha256
b974115e8a87307674caa1b13cf53c53b251f0f5ae8e304c3e82a15b2f854feb
sha512
3ecae2f51a987dbd8d63ea5a69a9adcf3825ea94550c2dd25dee6c553f2f741b2948f1a279974e2b961d63662403d6df148a4b230e1f418f9acb88c829e457bd
ripemd-160
fb073e51fd73a235a78afe9047abd8659653f20e
Diameter
137956180
Circumference
433402121.60531
Area
1.4947625275141E+16
Volume
1.3747448553533E+24
Surface area
5.9790501100564E+16
Circumference
433402121.60531
Perimeter
275912360
Area
4757976900048100
Diagonal
97549750.384592
Surface area
28547861400288600
Volume
3.2819615882944E+23
Space diagonal
119473556.48906
Perimeter
206934270
Area
2.0602644330306E+15
Altitude
59736778.244529
Surface area
2.0602644330306E+15
Volume
3.8678288244612E+22
Height
32516583.461531