91991407 is an odd 8-digits composite number following 91991406
and preceding 91991408 . In scientific notation, it is written as 9.1991407 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 86973120 positive integers (up to 91991407) that are relatively prime to 91991407.
91991407 has 8 divisors, whose sum is 97029360
The reverse of 91991407 is 70419919
Previous prime number is 521
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
ninety-one million nine hundred ninety-one thousand four hundred seven
Scientific notation
9.1991407 × 10^7
Engineering notation
9.1991407 × 10^6
Prime Factorization
19 × 521 × 9293
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
91991407
Product of the distinct prime numbers
The prime factorization of 91991407 is 19 × 521 × 9293.
Since it has a total of 3 prime factors.
1 , 10 , 8 , 73 , 652 , 856 , 3707 , 3322 , 27001 , 72261 , 613702 , 82366 , 7238129 , 2299459 , 36465716 , 99319857 , 518887682 , 435989041 , 7293249038 , 651132246
n×2
183982814
n×3
275974221
n×4
367965628
n×5
459957035
n÷2
45995703.5
n÷3
30663802.333333
n÷3
22997851.75
n÷5
18398281.4
n2
8462418961839649
n3
7.7846982692311E+23
n4
7.1612534685703E+31
n5
6.5877378245741E+39
2 √n
9591.2150950753
3 √n
451.42168808318
4 √n
97.934749170431
5 √n
39.151594348038
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
-91991406
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 91991407 can be divided by 8 positive divisors.
The sum of these divisors (counting 91991407) is 1, the average is 0.125.
Base
System
Value
2
Binary
101011110111010110101101111
3
Ternary
20102002122111011
4
Quaternary
11132322311233
5
Quinary
142022211112
6
Senary
13043410051
8
Octal
536726557
10
Decimal
91991407
12
Duodecimal
26983927
16
Hexadecimal
57bad6f
20
Vigesimal
18eiia7
36
Base36
1irp0v
md5
e57e12e3ea79d6df90523c1e7d5f3692
sha1
72673e44a76647f8c53e8a508735144bd03d83e1
sha256
1e17a94c49023d948bde9660b6c8c57df0434cc83b80e90fcb58dabea9dc72de
sha512
4a9e15c741a554aba369412799335aba8f1abfd606fd115cb81f78069ca4dc0c2ffdf94584d5589bebb05841524acc7487aad092f6c2e4b745d4ace039edf5f9
ripemd-160
52b1e9b66659649be2399b908503ffcdf0e428f9
Diameter
183982814
Circumference
577999056.84918
Area
2.6585473242114E+16
Volume
3.2608467857373E+24
Surface area
1.0634189296846E+17
Circumference
577999056.84918
Perimeter
367965628
Area
8462418961839649
Diagonal
130095495.40118
Surface area
50774513771037894
Volume
7.7846982692311E+23
Space diagonal
159333790.78375
Perimeter
275974221
Area
3.6643348992101E+15
Altitude
79666895.391874
Surface area
3.6643348992101E+15
Volume
9.1743548927741E+22
Height
43365165.133728