21378055 is an odd 8-digits composite number following 21378054
and preceding 21378056 . In scientific notation, it is written as 2.1378055 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 17102440 positive integers (up to 21378055) that are relatively prime to 21378055.
21378055 has 4 divisors, whose sum is 25653672
The reverse of 21378055 is 55087312
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million three hundred seventy-eight thousand fifty-five
Scientific notation
2.1378055 × 10^7
Engineering notation
2.1378055 × 10^6
Prime Factorization
5 × 4275611
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21378055
Product of the distinct prime numbers
The prime factorization of 21378055 is 5 × 4275611.
Since it has a total of 2 prime factors.
5 , 1 , 90 , 99 , 464 , 473 , 1378 , 3824 , 37798 , 60972 , 31305 , 20381 , 5588334 , 4487899 , 58622036 , 26889709 , 31730506 , 277333900 , 2617761977 , 7432213205
n×2
42756110
n×3
64134165
n×4
85512220
n×5
106890275
n÷2
10689027.5
n÷3
7126018.3333333
n÷3
5344513.75
n÷5
4275611
n2
457021235583025
n3
9.7702251104619E+21
n4
2.0886840977383E+29
n5
4.4652003519076E+36
2 √n
4623.6408813834
3 √n
277.53817617246
4 √n
67.997359370665
5 √n
29.241095421932
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
-21378054
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 21378055 can be divided by 4 positive divisors.
The sum of these divisors (counting 21378055) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100011010000000111
3
Ternary
1111020010011211
4
Quaternary
1101203100013
5
Quinary
20433044210
6
Senary
2042112251
8
Octal
121432007
10
Decimal
21378055
12
Duodecimal
71ab687
16
Hexadecimal
1463407
20
Vigesimal
6dc52f
36
Base36
cq7ev
md5
9c82d0a47a90b2890c6cbb5564725449
sha1
96aa76997a6fe3a34f9febc26addd19a8fe66a66
sha256
b615d66ed47e90c505011ddcbfc4a7e38c17e4099469fc56ff8ca819b09a6de0
sha512
8806f036413a5c18ef8c40300304055ad3241835012f895747520e104b350d2dada0f0a7902d2d1207a76094707003087a7b73249b34cf51802666d91beb89aa
ripemd-160
e77d288a787b359850ae2fc0ac280423f4852e79
Diameter
42756110
Circumference
134322281.07208
Area
1.4357745562422E+15
Volume
4.0925423241261E+22
Surface area
5.7430982249686E+15
Circumference
134322281.07208
Perimeter
85512220
Area
457021235583025
Diagonal
30233135.318158
Surface area
2742127413498150
Volume
9.7702251104619E+21
Space diagonal
37027877.427002
Perimeter
64134165
Area
1.9789600004193E+14
Altitude
18513938.713501
Surface area
1.9789600004193E+14
Volume
1.1514320715544E+21
Height
10077711.772719