21687310 is an even 8-digits composite number following 21687309
and preceding 21687311 . In scientific notation, it is written as 2.1687310 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 8674920 positive integers (up to 21687310) that are relatively prime to 21687310.
21687310 has 8 divisors, whose sum is 39037176
The reverse of 21687310 is 01378612
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million six hundred eighty-seven thousand three hundred ten
Scientific notation
2.1687310 × 10^7
Engineering notation
2.1687310 × 10^6
Prime Factorization
2 × 5 × 2168731
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21687310
Product of the distinct prime numbers
The prime factorization of 21687310 is 2 × 5 × 2168731.
Since it has a total of 3 prime factors.
10 , 5 , 100 , 19 , 928 , 450 , 3168 , 7769 , 40910 , 7824 , 935507 , 2592 , 9035041 , 1531329 , 7247502 , 57945609 , 299223450 , 243360023 , 9968428164 , 4656537125
n×2
43374620
n×3
65061930
n×4
86749240
n×5
108436550
n÷2
10843655
n÷3
7229103.3333333
n÷3
5421827.5
n÷5
4337462
n2
470339415036100
n3
1.0200396699107E+22
n4
2.212191653365E+29
n5
4.7976486165939E+36
2 √n
4656.9636030358
3 √n
278.87006363715
4 √n
68.241948997928
5 √n
29.325210449438
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
-21687309
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 21687310 can be divided by 8 positive divisors.
The sum of these divisors (counting 21687310) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101110110000001110
3
Ternary
1111210211101201
4
Quaternary
1102232300032
5
Quinary
21022443220
6
Senary
2052500114
8
Octal
122566016
10
Decimal
21687310
12
Duodecimal
731a63a
16
Hexadecimal
14aec0e
20
Vigesimal
6fai5a
36
Base36
cwu1a
md5
168d74e6057ea49d69e8a1c5644c16f2
sha1
7e6e93d0f77300b530104505ee83c8177a96ca50
sha256
0c07d3d91dcdd5bc3530f93c21c8321bb85a8eae11c8ef495e92b330be6d5de3
sha512
4148b9b1add635fcfa7b4fcab3311b19a0850370d8d06fb8a70f5b7edf9ccb7406f6bec332525d20ee20aceb6f7f49c48609918f31f659f1765be7a4a824b476
ripemd-160
459eab4e53b23d0cbc1ccbe6f7a66197a287323e
Diameter
43374620
Circumference
136265387.54425
Area
1.4776148509711E+15
Volume
4.2727321778153E+22
Surface area
5.9104594038845E+15
Circumference
136265387.54425
Perimeter
86749240
Area
470339415036100
Diagonal
30670487.93339
Surface area
2822036490216600
Volume
1.0200396699107E+22
Space diagonal
37563522.799497
Perimeter
65061930
Area
2.0366294091119E+14
Altitude
18781761.399748
Surface area
2.0366294091119E+14
Volume
1.2021282794552E+21
Height
10223495.977797