191187989 is an odd 9-digits prime number following 191187988
and preceding 191187990 . In scientific notation, it is written as 1.91187989 × 10^8.
The sum of its digits is 53. It has a total of 1 prime factors and 2 positive divisors.
There are 191187988 positive integers (up to 191187989) that are relatively prime to 191187989.
191187989 has 2 divisors, whose sum is 191187990
The reverse of 191187989 is 989781191
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 53
Digital Root 8
Name
one hundred ninety-one million one hundred eighty-seven thousand nine hundred eighty-nine
Scientific notation
1.91187989 × 10^8
Engineering notation
1.91187989 × 10^6
Prime Factorization
191187989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
191187989
Product of the distinct prime numbers
The prime factorization of 191187989 is 191187989.
Since it has a total of 1 prime factors.
6 , 7 , 32 , 26 , 464 , 821 , 438 , 7425 , 77647 , 839 , 353143 , 163264 , 5765145 , 7328705 , 56917420 , 23069160 , 533272667 , 4860612 , 3586258937 , 868136455
n×2
382375978
n×3
573563967
n×4
764751956
n×5
955939945
n÷2
95593994.5
n÷3
63729329.666667
n÷3
47796997.25
n÷5
38237597.8
n2
36552847137864121
n3
6.9884653365126E+24
n4
1.3361106338841E+33
n5
2.5544830517381E+41
2 √n
13827.074491735
3 √n
576.0853993829
4 √n
117.58858146834
5 √n
45.320231647171
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
191187990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
95593995
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
13827.074527896
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999895391
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 191187989 can be divided by 2 positive divisors.
The sum of these divisors (counting 191187989) is 191187990, the average is 95593995.
Base
System
Value
2
Binary
1011011001010100110000010101
3
Ternary
111022202100121122
4
Quaternary
23121110300111
5
Quinary
342421003424
6
Senary
30545453325
8
Octal
1331246025
10
Decimal
191187989
12
Duodecimal
54041245
16
Hexadecimal
b654c15
20
Vigesimal
2jei9j9
36
Base36
35ttlh
md5
7dce1567e615b978b13caff1e2fd672c
sha1
f4f2d91cd4571a87893e4f4819e6a5d94bb4f9fa
sha256
c400e10b1d59d491e31e46304d9d7978f02a6da03cc7b266c68d1dc5dedbc61c
sha512
96d3e41741ffda7b5a431f21ff0cd36c0459f69e2c6d0a81484a32724f9d7d8e071bda68e8f549159ddc619ed995c02c00723dc6f564287e920d89550032b154
ripemd-160
517cdef0464f45bfbd0673c86a9237a0abb9670a
Diameter
382375978
Circumference
1201269563.394
Area
1.148341560361E+17
Volume
2.9273215148073E+25
Surface area
4.5933662414442E+17
Circumference
1201269563.394
Perimeter
764751956
Area
36552847137864121
Diagonal
270380647.00664
Surface area
219317082827184726
Volume
6.9884653365126E+24
Space diagonal
331147310.74492
Perimeter
573563967
Area
1.582784710102E+16
Altitude
165573655.37246
Surface area
1.582784710102E+16
Volume
8.2359853825587E+23
Height
90126882.335546