66215890 is an even 8-digits composite number following 66215889
and preceding 66215891 . In scientific notation, it is written as 6.6215890 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 24448320 positive integers (up to 66215890) that are relatively prime to 66215890.
66215890 has 16 divisors, whose sum is 108612504
The reverse of 66215890 is 09851266
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
sixty-six million two hundred fifteen thousand eight hundred ninety
Scientific notation
6.6215890 × 10^7
Engineering notation
6.6215890 × 10^6
Prime Factorization
2 × 65 × 13 × 39181
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66215890
Product of the distinct prime numbers
The prime factorization of 66215890 is 2 × 65 × 13 × 39181.
Since it has a total of 4 prime factors.
9 , 9 , 15 , 57 , 937 , 218 , 6775 , 4249 , 70897 , 75894 , 800829 , 988324 , 2903018 , 760019 , 82351601 , 91511782 , 73472015 , 12415502 , 7154538703 , 5310434217
n×2
132431780
n×3
198647670
n×4
264863560
n×5
331079450
n÷2
33107945
n÷3
22071963.333333
n÷3
16553972.5
n÷5
13243178
n2
4384544088492100
n3
2.9032648906374E+23
n4
1.9224226863931E+31
n5
1.2729492913571E+39
2 √n
8137.3146676284
3 √n
404.56416051655
4 √n
90.207065508354
5 √n
36.659998608814
1 , 2 , 13 , 26 , 65 , 130 , 845 , 1690 , 39181 , 78362 , 509353 , 1018706 , 2546765 , 5093530 , 33107945 , 66215890
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
-66215889
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 66215890 can be divided by 16 positive divisors.
The sum of these divisors (counting 66215890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111100100101111111010010
3
Ternary
11121121010010101
4
Quaternary
3330211333102
5
Quinary
113422402030
6
Senary
10323123014
8
Octal
374457722
10
Decimal
66215890
12
Duodecimal
1a21346a
16
Hexadecimal
3f25fd2
20
Vigesimal
10dgjea
36
Base36
13f8ia
md5
e678f5c937d6d8070188e835f323e45a
sha1
de281f8c8f461badfa83b2b9bc8e144dbedc3ac7
sha256
2c2fe5d756786e09f423f5bd28d825de02d4919112efc0705660d6809e8acb44
sha512
a1700b1a94609a39b1d638e14be64a1dd887ae3499f1be3f40df2c29d5208d118cb20fc366d7c46dee9488f22885394f521dcb7ece3bd8ef97da3cb927b9fb4c
ripemd-160
84e21c393cae81f2511853f36b505f08db3e9d11
Diameter
132431780
Circumference
416046707.14982
Area
1.3774451497747E+16
Volume
1.2161167535802E+24
Surface area
5.5097805990989E+16
Circumference
416046707.14982
Perimeter
264863560
Area
4384544088492100
Diagonal
93643409.682605
Surface area
26307264530952600
Volume
2.9032648906374E+23
Space diagonal
114689285.74839
Perimeter
198647670
Area
1.8985632823235E+15
Altitude
57344642.874196
Surface area
1.8985632823235E+15
Volume
3.4215304862509E+22
Height
31214469.894202