691806989 is an odd 9-digits prime number following 691806988
and preceding 691806990 . In scientific notation, it is written as 6.91806989 × 10^8.
The sum of its digits is 56. It has a total of 1 prime factors and 2 positive divisors.
There are 691806988 positive integers (up to 691806989) that are relatively prime to 691806989.
691806989 has 2 divisors, whose sum is 691806990
The reverse of 691806989 is 989608196
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 56
Digital Root 2
Name
six hundred ninety-one million eight hundred six thousand nine hundred eighty-nine
Scientific notation
6.91806989 × 10^8
Engineering notation
6.91806989 × 10^6
Prime Factorization
691806989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
691806989
Product of the distinct prime numbers
The prime factorization of 691806989 is 691806989.
Since it has a total of 1 prime factors.
2 , 7 , 57 , 67 , 866 , 397 , 455 , 7748 , 30197 , 91906 , 10206 , 120052 , 852734 , 1721532 , 17557162 , 31970994 , 826779375 , 344051206 , 52810615 , 6059397160
n×2
1383613978
n×3
2075420967
n×4
2767227956
n×5
3459034945
n÷2
345903494.5
n÷3
230602329.66667
n÷3
172951747.25
n÷5
138361397.8
n2
478596910029246121
n3
3.3109668727204E+26
n4
2.2905500228954E+35
n5
1.5846185144932E+44
2 √n
26302.224031439
3 √n
884.4262995277
4 √n
162.17960423999
5 √n
58.613410082985
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
691806990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
345903495
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
26302.224050449
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999997109
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 691806989 can be divided by 2 positive divisors.
The sum of these divisors (counting 691806989) is 691806990, the average is 345903495.
Base
System
Value
2
Binary
101001001111000010001100001101
3
Ternary
1210012202102210002
4
Quaternary
221033002030031
5
Quinary
2404100310424
6
Senary
152351454045
8
Octal
5117021415
10
Decimal
691806989
12
Duodecimal
173827325
16
Hexadecimal
293c230d
20
Vigesimal
ag3fh99
36
Base36
bfvtot
md5
13b6851bc9c1da48266185d9bd285063
sha1
e7306c9d5565992408eeea49956e2e6e83ab5c7c
sha256
14df845a49b98777f8845ee4ac21e109c5add92e60becff5a588dbda8888fa76
sha512
7a95f3418ccb52f94a3950977d1010abe9d5af6f27636d7f8dc7d652fe883bb4e9d7238f1e5df65944e2b0dc3cbd40872a2cc762a89202136787db3dc7f47881
ripemd-160
18f35187c07a290fa7d60e0c3cf0ecc5a708f8c8
Diameter
1383613978
Circumference
4346751508.6889
Area
1.5035565365787E+18
Volume
1.3868945604823E+27
Surface area
6.0142261463146E+18
Circumference
4346751508.6889
Perimeter
2767227956
Area
478596910029246121
Diagonal
978362826.38829
Surface area
2871581460175476726
Volume
3.3109668727204E+26
Space diagonal
1198244853.9792
Perimeter
2075420967
Area
2.0723854112903E+17
Altitude
599122426.98962
Surface area
2.0723854112903E+17
Volume
3.9020118799743E+25
Height
326120942.12943