21154927 is an odd 8-digits composite number following 21154926
and preceding 21154928 . In scientific notation, it is written as 2.1154927 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20472480 positive integers (up to 21154927) that are relatively prime to 21154927.
21154927 has 4 divisors, whose sum is 21837376
The reverse of 21154927 is 72945112
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million one hundred fifty-four thousand nine hundred twenty-seven
Scientific notation
2.1154927 × 10^7
Engineering notation
2.1154927 × 10^6
Prime Factorization
31 × 682417
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21154927
Product of the distinct prime numbers
The prime factorization of 21154927 is 31 × 682417.
Since it has a total of 2 prime factors.
1 , 10 , 49 , 71 , 57 , 199 , 2512 , 6605 , 23932 , 37756 , 852279 , 790740 , 2616588 , 4818349 , 68076706 , 44086447 , 970925463 , 645058120 , 7674525283 , 2758633018
n×2
42309854
n×3
63464781
n×4
84619708
n×5
105774635
n÷2
10577463.5
n÷3
7051642.3333333
n÷3
5288731.75
n÷5
4230985.4
n2
447530936375329
n3
9.4674842892617E+21
n4
2.0028393901298E+29
n5
4.236992109092E+36
2 √n
4599.448553903
3 √n
276.56921924156
4 √n
67.819234394845
5 √n
29.179799685452
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
-21154926
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 21154927 can be divided by 4 positive divisors.
The sum of these divisors (counting 21154927) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101100110001101111
3
Ternary
1110210210002211
4
Quaternary
1100230301233
5
Quinary
20403424202
6
Senary
2033231251
8
Octal
120546157
10
Decimal
21154927
12
Duodecimal
7102527
16
Hexadecimal
142cc6f
20
Vigesimal
6c4767
36
Base36
clf8v
md5
255c8dfc4bb8a00a4435caa28f408158
sha1
3b2be543430b38510cd99f17b6b62966fab45d1c
sha256
239cd872a0bd62bcbf264d9467d3b772d60d6988512b998f5269ed32b7fce4e9
sha512
be2f66d16412f67008e74c8178b3dc23d0e127e96aea0ea36faf3e2dab2c21a67e44ff1259d2884487e77953cf60ec71d135907b97f669ba91614a0b799e8b27
ripemd-160
2d84b94d58d6f0a9a0982d99882118b6bc469bf7
Diameter
42309854
Circumference
132920326.50086
Area
1.4059599019709E+15
Volume
3.9657305454829E+22
Surface area
5.6238396078836E+15
Circumference
132920326.50086
Perimeter
84619708
Area
447530936375329
Diagonal
29917584.674413
Surface area
2685185618251974
Volume
9.4674842892617E+21
Space diagonal
36641408.394411
Perimeter
63464781
Area
1.9378657994024E+14
Altitude
18320704.197205
Surface area
1.9378657994024E+14
Volume
1.115753723619E+21
Height
9972528.2248043