21542407 is an odd 8-digits composite number following 21542406
and preceding 21542408 . In scientific notation, it is written as 2.1542407 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 21499576 positive integers (up to 21542407) that are relatively prime to 21542407.
21542407 has 4 divisors, whose sum is 21585240
The reverse of 21542407 is 70424512
Previous prime number is 509
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million five hundred forty-two thousand four hundred seven
Scientific notation
2.1542407 × 10^7
Engineering notation
2.1542407 × 10^6
Prime Factorization
509 × 42323
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21542407
Product of the distinct prime numbers
The prime factorization of 21542407 is 509 × 42323.
Since it has a total of 2 prime factors.
6 , 3 , 81 , 73 , 269 , 488 , 6057 , 5189 , 99756 , 48080 , 578768 , 815205 , 2738643 , 5123978 , 49187048 , 46428065 , 871223068 , 310870861 , 7468009649 , 9712687355
n×2
43084814
n×3
64627221
n×4
86169628
n×5
107712035
n÷2
10771203.5
n÷3
7180802.3333333
n÷3
5385601.75
n÷5
4308481.4
n2
464075299353649
n3
9.9972989773231E+21
n4
2.1536588347018E+29
n5
4.6394995156292E+36
2 √n
4641.3798594814
3 √n
278.24758837801
4 √n
68.127673228149
5 √n
29.285918224077
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
-21542406
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 21542407 can be divided by 4 positive divisors.
The sum of these divisors (counting 21542407) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001011011000000111
3
Ternary
1111112110121221
4
Quaternary
1102023120013
5
Quinary
21003324112
6
Senary
2045421211
8
Octal
122133007
10
Decimal
21542407
12
Duodecimal
726a807
16
Hexadecimal
148b607
20
Vigesimal
6ecg07
36
Base36
ctq87
md5
a174ff86835edb64dbbe767795a446be
sha1
9518a7428082947ec0c122696cd11e9a6984e1b7
sha256
6cbebde775316a6652f25bd9311d3f78b05be9c2c74cba64a2bb2d5b1d4b58ed
sha512
d32e74944e242002dc980b975cb688c090d630ef6bf0bc8fe748bf158fa5849572fee57362428e57feb485a5006fc58a64d032277646d80a3c847a74d8ca72a0
ripemd-160
f4e5d4687fda9b31ecd9e4b2b2063c786a25ac9d
Diameter
43084814
Circumference
135354935.14368
Area
1.4579355511619E+15
Volume
4.1876588030532E+22
Surface area
5.8317422046476E+15
Circumference
135354935.14368
Perimeter
86169628
Area
464075299353649
Diagonal
30465564.145561
Surface area
2784451796121894
Volume
9.9972989773231E+21
Space diagonal
37312543.441327
Perimeter
64627221
Area
2.0095049925456E+14
Altitude
18656271.720664
Surface area
2.0095049925456E+14
Volume
1.1781929834024E+21
Height
10155188.04852