91991427 is an odd 8-digits composite number following 91991426
and preceding 91991428 . In scientific notation, it is written as 9.1991427 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 55752360 positive integers (up to 91991427) that are relatively prime to 91991427.
91991427 has 8 divisors, whose sum is 133805760
The reverse of 91991427 is 72419919
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
ninety-one million nine hundred ninety-one thousand four hundred twenty-seven
Scientific notation
9.1991427 × 10^7
Engineering notation
9.1991427 × 10^6
Prime Factorization
3 × 11 × 2787619
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
91991427
Product of the distinct prime numbers
The prime factorization of 91991427 is 3 × 11 × 2787619.
Since it has a total of 3 prime factors.
7 , 8 , 70 , 38 , 28 , 793 , 1634 , 2380 , 3501 , 22532 , 759670 , 445519 , 6201831 , 180292 , 98909384 , 5845443 , 362257812 , 177968368 , 7345951056 , 6169746466
n×2
183982854
n×3
275974281
n×4
367965708
n×5
459957135
n÷2
45995713.5
n÷3
30663809
n÷3
22997856.75
n÷5
18398285.4
n2
8462422641496329
n3
7.7847033466836E+23
n4
7.161259696331E+31
n5
6.5877449858307E+39
2 √n
9591.216137696
3 √n
451.42172079795
4 √n
97.934754493469
5 √n
39.15159605044
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-91991426
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 91991427 can be divided by 8 positive divisors.
The sum of these divisors (counting 91991427) is 1, the average is 0.125.
Base
System
Value
2
Binary
101011110111010110110000011
3
Ternary
20102002122111220
4
Quaternary
11132322312003
5
Quinary
142022211202
6
Senary
13043410123
8
Octal
536726603
10
Decimal
91991427
12
Duodecimal
26983943
16
Hexadecimal
57bad83
20
Vigesimal
18eiib7
36
Base36
1irp1f
md5
f617913598fe5b63643fbc2237811f3a
sha1
4c9432049947ad5c80a1285e32a2705f528cf2cb
sha256
fb7a2de5d23358afe0841690dde9285fe0bedc953c704cc0b2138362af0336d7
sha512
a059a3dd83a6eac8329c1a77d44b6a22e76b282272d4ac5c9d7c90d9091fe958d2ad0718497337678ffb10827f4665ab6ac92dfdce79b8a1ed4a6f0195ec8914
ripemd-160
22fa586bc0ea49a65863fb808eccfd6e2a921af2
Diameter
183982854
Circumference
577999182.51288
Area
2.6585484802097E+16
Volume
3.2608489125756E+24
Surface area
1.0634193920839E+17
Circumference
577999182.51288
Perimeter
367965708
Area
8462422641496329
Diagonal
130095523.68545
Surface area
50774535848977974
Volume
7.7847033466836E+23
Space diagonal
159333825.42476
Perimeter
275974281
Area
3.6643364925482E+15
Altitude
79666912.712382
Surface area
3.6643364925482E+15
Volume
9.1743608766093E+22
Height
43365174.561818