65021991 is an odd 8-digits composite number following 65021990
and preceding 65021992 . In scientific notation, it is written as 6.5021991 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 40798080 positive integers (up to 65021991) that are relatively prime to 65021991.
65021991 has 8 divisors, whose sum is 91795824
The reverse of 65021991 is 19912056
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
sixty-five million twenty-one thousand nine hundred ninety-one
Scientific notation
6.5021991 × 10^7
Engineering notation
6.5021991 × 10^6
Prime Factorization
3 × 17 × 1274941
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
65021991
Product of the distinct prime numbers
The prime factorization of 65021991 is 3 × 17 × 1274941.
Since it has a total of 3 prime factors.
2 , 5 , 18 , 49 , 955 , 954 , 9102 , 8947 , 92737 , 65827 , 940692 , 950800 , 8752462 , 1278922 , 49963766 , 59763726 , 457138646 , 954625133 , 1018437788 , 3077453105
n×2
130043982
n×3
195065973
n×4
260087964
n×5
325109955
n÷2
32510995.5
n÷3
21673997
n÷3
16255497.75
n÷5
13004398.2
n2
4227859313604081
n3
2.7490383023843E+23
n4
1.7874794375629E+31
n5
1.162254719019E+39
2 √n
8063.621456889
3 √n
402.11791422329
4 √n
89.797669551548
5 √n
36.526835833066
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
-65021990
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 65021991 can be divided by 8 positive divisors.
The sum of these divisors (counting 65021991) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111000000010100000100111
3
Ternary
11112100110101220
4
Quaternary
3320002200213
5
Quinary
113121200431
6
Senary
10241351423
8
Octal
370024047
10
Decimal
65021991
12
Duodecimal
19938573
16
Hexadecimal
3e02827
20
Vigesimal
1067ejb
36
Base36
12pnaf
md5
00a3facd956eeb947314043fa68cdd02
sha1
9ed39767e3d04a776d3c00d6cf7d23d650b1cee4
sha256
0788d05a4eb2b6bc47ed0c3559df16bc172c48743e70b4f6bf86ca15593cb4ae
sha512
4b9a0cd317e89afc10d4b3cdc56e9dc3e2c6bba5659ea6bc8db051aec7f95335191150d6602199b5f14d381c31a034eddbbe7c3379ae43116d6f37292322b7e3
ripemd-160
40f8efb299e57a8a47a64dd5936a72689fca97b3
Diameter
130043982
Circumference
408545218.49476
Area
1.328221176003E+16
Volume
1.151514471361E+24
Surface area
5.3128847040119E+16
Circumference
408545218.49476
Perimeter
260087964
Area
4227859313604081
Diagonal
91954981.524701
Surface area
25367155881624486
Volume
2.7490383023843E+23
Space diagonal
112621392.02129
Perimeter
195065973
Area
1.8307167846039E+15
Altitude
56310696.010643
Surface area
1.8307167846039E+15
Volume
3.2397727089292E+22
Height
30651660.508234