21158087 is an odd 8-digits composite number following 21158086
and preceding 21158088 . In scientific notation, it is written as 2.1158087 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 21077376 positive integers (up to 21158087) that are relatively prime to 21158087.
21158087 has 4 divisors, whose sum is 21238800
The reverse of 21158087 is 78085112
Previous prime number is 263
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million one hundred fifty-eight thousand eighty-seven
Scientific notation
2.1158087 × 10^7
Engineering notation
2.1158087 × 10^6
Prime Factorization
263 × 80449
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21158087
Product of the distinct prime numbers
The prime factorization of 21158087 is 263 × 80449.
Since it has a total of 2 prime factors.
10 , 6 , 84 , 36 , 233 , 473 , 3291 , 8503 , 95654 , 77347 , 388904 , 398694 , 6914016 , 8486410 , 98561371 , 90795036 , 445156736 , 804583632 , 3921368071 , 3357110788
n×2
42316174
n×3
63474261
n×4
84632348
n×5
105790435
n÷2
10579043.5
n÷3
7052695.6666667
n÷3
5289521.75
n÷5
4231617.4
n2
447664645499569
n3
9.471727516304E+21
n4
2.0040363483025E+29
n5
4.2401575408548E+36
2 √n
4599.7920605175
3 √n
276.58298932328
4 √n
67.821766863725
5 √n
29.180671375135
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
-21158086
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 21158087 can be divided by 4 positive divisors.
The sum of these divisors (counting 21158087) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101101100011000111
3
Ternary
1110210221102212
4
Quaternary
1100231203013
5
Quinary
20404024322
6
Senary
2033254035
8
Octal
120554307
10
Decimal
21158087
12
Duodecimal
710431b
16
Hexadecimal
142d8c7
20
Vigesimal
6c4f47
36
Base36
clhon
md5
eb9a1ecb69299ba7b5bc96bc4dda3609
sha1
970d8fbbb3b0861a758ab1f325a34021492b7e9c
sha256
2f7902cd50a90239dcc9d5086212c8af06cc704a24648076448710f0ad79a77e
sha512
9c4a06f87eab708bb8fea51e5c3ba35e430d4af2d94112a9e3b31c36161f5a673d2ae7ceed81e1bbb2d4db8f99a8546ac9230e228062c49b4a52d64fd47135b7
ripemd-160
02c0fce9d473bbb0960bdc6f70defb838a389c4c
Diameter
42316174
Circumference
132940181.36643
Area
1.4063799615733E+15
Volume
3.96750794427E+22
Surface area
5.6255198462933E+15
Circumference
132940181.36643
Perimeter
84632348
Area
447664645499569
Diagonal
29922053.58927
Surface area
2685987872997414
Volume
9.471727516304E+21
Space diagonal
36646881.674963
Perimeter
63474261
Area
1.9384447768939E+14
Altitude
18323440.837481
Surface area
1.9384447768939E+14
Volume
1.1162537927216E+21
Height
9974017.86309