68569891 is an odd 8-digits composite number following 68569890
and preceding 68569892 . In scientific notation, it is written as 6.8569891 × 10^7.
The sum of its digits is 52. It has a total of 5 prime factors and 24 positive divisors.
There are 57447936 positive integers (up to 68569891) that are relatively prime to 68569891.
68569891 has 24 divisors, whose sum is 81427680
The reverse of 68569891 is 19896586
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
sixty-eight million five hundred sixty-nine thousand eight hundred ninety-one
Scientific notation
6.8569891 × 10^7
Engineering notation
6.8569891 × 10^6
Prime Factorization
13 × 13 × 17 × 29 × 823
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5274607
Product of the distinct prime numbers
The prime factorization of 68569891 is 13 × 13 × 17 × 29 × 823.
Since it has a total of 5 prime factors.
6 , 2 , 13 , 93 , 115 , 959 , 8836 , 8214 , 91742 , 79088 , 40152 , 713738 , 2217919 , 2349891 , 853337 , 91377478 , 215223533 , 734123793 , 7788239181 , 1099761826
n×2
137139782
n×3
205709673
n×4
274279564
n×5
342849455
n÷2
34284945.5
n÷3
22856630.333333
n÷3
17142472.75
n÷5
13713978.2
n2
4701829951751881
n3
3.2240396729216E+23
n4
2.2107204895191E+31
n5
1.5158886299779E+39
2 √n
8280.6938718926
3 √n
409.30258393922
4 √n
90.998317961887
5 √n
36.917024674106
1 , 13 , 17 , 29 , 169 , 221 , 377 , 493 , 823 , 2873 , 4901 , 6409 , 10699 , 13991 , 23867 , 83317 , 139087 , 181883 , 310271 , 405739 , 2364479 , 4033523 , 5274607 , 68569891
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68569890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68569891 can be divided by 24 positive divisors.
The sum of these divisors (counting 68569891) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100000101100100101100100011
3
Ternary
11210000201012121
4
Quaternary
10011210230203
5
Quinary
120023214031
6
Senary
10445405111
8
Octal
405445443
10
Decimal
68569891
12
Duodecimal
1ab69797
16
Hexadecimal
4164b23
20
Vigesimal
118b4eb
36
Base36
14tov7
md5
0ed55341735836519dc680853fc73f16
sha1
5a4a962c0540c21f3b2fdb3775266b25eff66583
sha256
a59395e2a86e6eacaadd2c9e60b411485821b76674b8212b2ad2c1105a8ebdbc
sha512
3e9dcd1e26cbe9be847935930db85502e930ea63597b54890abcce478ce33a661b949196b568aab66553dfb6d718c7a5c7f6c304e6640350e6570ff7bb3f969a
ripemd-160
5efd88fbef2dcfaae6e9f1fd10549c7d0abf821c
Diameter
137139782
Circumference
430837331.64611
Area
1.4771234434852E+16
Volume
1.3504825801777E+24
Surface area
5.9084937739409E+16
Circumference
430837331.64611
Perimeter
274279564
Area
4701829951751881
Diagonal
96972469.822645
Surface area
28210979710511286
Volume
3.2240396729216E+23
Space diagonal
118766535.08146
Perimeter
205709673
Area
2.0359520912458E+15
Altitude
59383267.54073
Surface area
2.0359520912458E+15
Volume
3.7995671925622E+22
Height
32324156.607548