64171921 is an odd 8-digits composite number following 64171920
and preceding 64171922 . In scientific notation, it is written as 6.4171921 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 57369600 positive integers (up to 64171921) that are relatively prime to 64171921.
64171921 has 16 divisors, whose sum is 71180928
The reverse of 64171921 is 12917146
Previous prime number is 167
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
sixty-four million one hundred seventy-one thousand nine hundred twenty-one
Scientific notation
6.4171921 × 10^7
Engineering notation
6.4171921 × 10^6
Prime Factorization
11 × 193 × 167 × 181
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
64171921
Product of the distinct prime numbers
The prime factorization of 64171921 is 11 × 193 × 167 × 181.
Since it has a total of 4 prime factors.
2 , 8 , 90 , 68 , 879 , 566 , 9673 , 5208 , 68167 , 55282 , 908976 , 355745 , 6965880 , 1172031 , 80184163 , 76943853 , 143848023 , 466302289 , 903714575 , 9770014862
n×2
128343842
n×3
192515763
n×4
256687684
n×5
320859605
n÷2
32085960.5
n÷3
21390640.333333
n÷3
16042980.25
n÷5
12834384.2
n2
4118035444830241
n3
2.6426224524085E+23
n4
1.6958215924878E+31
n5
1.0882412926322E+39
2 √n
8010.7378561528
3 √n
400.35784851563
4 √n
89.502725411871
5 √n
36.43082515091
1 , 11 , 167 , 181 , 193 , 1837 , 1991 , 2123 , 30227 , 32231 , 34933 , 332497 , 354541 , 384263 , 5833811 , 64171921
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-64171920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 64171921 can be divided by 16 positive divisors.
The sum of these divisors (counting 64171921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11110100110010111110010001
3
Ternary
11110202021022211
4
Quaternary
3310302332101
5
Quinary
112412000141
6
Senary
10211232121
8
Octal
364627621
10
Decimal
64171921
12
Duodecimal
195a8641
16
Hexadecimal
3d32f91
20
Vigesimal
10119g1
36
Base36
127fdd
md5
7e1453a2b96130d52e3f254f0c02364b
sha1
69ceb6fb4a7810b5765a09a7bd3c1f1939b09d0b
sha256
94f5b17244cef4e614adfaf108607c3973cb1df130046410b05fc95300e5d5ae
sha512
90ca37b2eccb2805d3a4903bbd74ef60572b8b735a41e16f0c8d5f7a35e76b0a9b60b183abbec84416580b81aef9ce14b071a993fc6fb78d4cc0d29866e2faa3
ripemd-160
dbddd798e14270ed82108dc361514e340e5a1be0
Diameter
128343842
Circumference
403204071.16069
Area
1.2937189900701E+16
Volume
1.1069391043597E+24
Surface area
5.1748759602804E+16
Circumference
403204071.16069
Perimeter
256687684
Area
4118035444830241
Diagonal
90752801.001735
Surface area
24708212668981446
Volume
2.6426224524085E+23
Space diagonal
111149027.5913
Perimeter
192515763
Area
1.7831616544539E+15
Altitude
55574513.795648
Surface area
1.7831616544539E+15
Volume
3.1143604270231E+22
Height
30250933.667245