91990421 is an odd 8-digits composite number following 91990420
and preceding 91990422 . In scientific notation, it is written as 9.1990421 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 90033132 positive integers (up to 91990421) that are relatively prime to 91990421.
91990421 has 4 divisors, whose sum is 93947712
The reverse of 91990421 is 12409919
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
ninety-one million nine hundred ninety thousand four hundred twenty-one
Scientific notation
9.1990421 × 10^7
Engineering notation
9.1990421 × 10^6
Prime Factorization
47 × 1957243
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
91990421
Product of the distinct prime numbers
The prime factorization of 91990421 is 47 × 1957243.
Since it has a total of 2 prime factors.
5 , 3 , 98 , 87 , 500 , 713 , 4642 , 2254 , 64828 , 60410 , 618829 , 499189 , 9747606 , 5989253 , 27843823 , 49554084 , 478104907 , 303811455 , 3879707588 , 3967425191
n×2
183980842
n×3
275971263
n×4
367961684
n×5
459952105
n÷2
45995210.5
n÷3
30663473.666667
n÷3
22997605.25
n÷5
18398084.2
n2
8462237555757241
n3
7.7844479535612E+23
n4
7.1609464450068E+31
n5
6.5873847823463E+39
2 √n
9591.1636937339
3 √n
451.42007523915
4 √n
97.934486743608
5 √n
39.151510419248
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
-91990420
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 91990421 can be divided by 4 positive divisors.
The sum of these divisors (counting 91990421) is 1, the average is 0.25.
Base
System
Value
2
Binary
101011110111010100110010101
3
Ternary
20102002121010122
4
Quaternary
11132322212111
5
Quinary
142022143141
6
Senary
13043401325
8
Octal
536724625
10
Decimal
91990421
12
Duodecimal
26983245
16
Hexadecimal
57ba995
20
Vigesimal
18eig11
36
Base36
1iro9h
md5
0a3a3cc46b45282be852c082412fbb6c
sha1
50e85ec07d5cc9f757db3c8adf8073000d427b62
sha256
877c2f39109a83b2efd4c2c65947109ad27d9726863cdc2ef35131fe1f51b5cf
sha512
14b969c23ec068bf07bc3fbff180de77847bf1314f1eb838e90a23490cd13f1448240b2b1d01a6c5f2010f77ccc50e71158675ac541e3f4cdb793ac03f1d40f8
ripemd-160
5a841e0568ea641b7dad1285aa283434e756c089
Diameter
183980842
Circumference
577992861.62846
Area
2.6584903338099E+16
Volume
3.2607419337547E+24
Surface area
1.0633961335239E+17
Circumference
577992861.62846
Perimeter
367961684
Area
8462237555757241
Diagonal
130094100.98661
Surface area
50773425334543446
Volume
7.7844479535612E+23
Space diagonal
159332082.98165
Perimeter
275971263
Area
3.6642563480723E+15
Altitude
79666041.490826
Surface area
3.6642563480723E+15
Volume
9.1740598929281E+22
Height
43364700.32887