68991837 is an odd 8-digits composite number following 68991836
and preceding 68991838 . In scientific notation, it is written as 6.8991837 × 10^7.
The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors.
There are 45994556 positive integers (up to 68991837) that are relatively prime to 68991837.
68991837 has 4 divisors, whose sum is 91989120
The reverse of 68991837 is 73819986
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
sixty-eight million nine hundred ninety-one thousand eight hundred thirty-seven
Scientific notation
6.8991837 × 10^7
Engineering notation
6.8991837 × 10^6
Prime Factorization
3 × 22997279
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68991837
Product of the distinct prime numbers
The prime factorization of 68991837 is 3 × 22997279.
Since it has a total of 2 prime factors.
6 , 6 , 7 , 64 , 280 , 291 , 6382 , 1321 , 73949 , 4913 , 923932 , 546754 , 6808294 , 5237820 , 31795873 , 98041899 , 127781025 , 479173593 , 6787636705 , 5835654927
n×2
137983674
n×3
206975511
n×4
275967348
n×5
344959185
n÷2
34495918.5
n÷3
22997279
n÷3
17247959.25
n÷5
13798367.4
n2
4759873572634569
n3
3.2839242166381E+23
n4
2.2656396427465E+31
n5
1.563106409331E+39
2 √n
8306.1324935255
3 √n
410.14041789628
4 √n
91.137986007622
5 √n
36.96234716276
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
-68991836
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 68991837 can be divided by 4 positive divisors.
The sum of these divisors (counting 68991837) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000111001011101101011101
3
Ternary
11210211011000020
4
Quaternary
10013023231131
5
Quinary
120130214322
6
Senary
10502422353
8
Octal
407135535
10
Decimal
68991837
12
Duodecimal
1b1319b9
16
Hexadecimal
41cbb5d
20
Vigesimal
11b3jbh
36
Base36
152qfx
md5
d30183845f27face0bc52a1c68bf3ecb
sha1
7b1bef1879f68aa01c17fd924ac74c0a79415d6b
sha256
112361b54a08a47b9800b9459b40a9a5c3500e3486fc6cef3f0c8e3bc92ac9c8
sha512
684609305dc91d7049edd54d12d61ccb5f759349d6a65129034e89d16f2a77ea2ed7bb2d69ff59e8ea0a2643e95a9b5489e9eaeb933b472ed0ff0cd250e2b691
ripemd-160
0280b17afa8fddb33eda52e5ada75cdfb4ab29d5
Diameter
137983674
Circumference
433488496.55373
Area
1.4953583847805E+16
Volume
1.3755669591915E+24
Surface area
5.981433539122E+16
Circumference
433488496.55373
Perimeter
275967348
Area
4759873572634569
Diagonal
97569191.578434
Surface area
28559241435807414
Volume
3.2839242166381E+23
Space diagonal
119497366.99151
Perimeter
206975511
Area
2.0610857163519E+15
Altitude
59748683.495755
Surface area
2.0610857163519E+15
Volume
3.8701418041459E+22
Height
32523063.859478