21557071 is an odd 8-digits composite number following 21557070
and preceding 21557072 . In scientific notation, it is written as 2.1557071 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 20240640 positive integers (up to 21557071) that are relatively prime to 21557071.
21557071 has 8 divisors, whose sum is 22879584
The reverse of 21557071 is 17075512
Previous prime number is 503
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred fifty-seven thousand seventy-one
Scientific notation
2.1557071 × 10^7
Engineering notation
2.1557071 × 10^6
Prime Factorization
17 × 503 × 2521
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21557071
Product of the distinct prime numbers
The prime factorization of 21557071 is 17 × 503 × 2521.
Since it has a total of 3 prime factors.
9 , 2 , 28 , 38 , 111 , 783 , 8235 , 7685 , 68846 , 10078 , 972794 , 802436 , 1058899 , 4073841 , 74121908 , 40481719 , 810480968 , 420197333 , 5835067470 , 7454484616
n×2
43114142
n×3
64671213
n×4
86228284
n×5
107785355
n÷2
10778535.5
n÷3
7185690.3333333
n÷3
5389267.75
n÷5
4311414.2
n2
464707310099041
n3
1.0017728478024E+22
n4
2.1595288405949E+29
n5
4.6553116543251E+36
2 √n
4642.9592933818
3 √n
278.31070879562
4 √n
68.139263962724
5 √n
29.289904146556
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
-21557070
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 21557071 can be divided by 8 positive divisors.
The sum of these divisors (counting 21557071) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001110111101001111
3
Ternary
1111120012202001
4
Quaternary
1102032331033
5
Quinary
21004311241
6
Senary
2050013131
8
Octal
122167517
10
Decimal
21557071
12
Duodecimal
72771a7
16
Hexadecimal
148ef4f
20
Vigesimal
6eecdb
36
Base36
cu1jj
md5
ec10891f9d1c79ce88d272f606fdfd45
sha1
4d0b2254c7fcb5d915b95c4b7c4d20c66025e6f0
sha256
8a172de100ceba6f5842c4fc723098ddd1fae5ac6e559086966426b6822805ba
sha512
0b1c361395c9cb6656f9c87ea4f8512cc7fb9354e6a7d608ac0bc9bc9af96fe36abd1236fe69066e3457965638620e66c703b74c7e2332652edcc969d2e5cbde
ripemd-160
8b17b31b4c8ae7eea86d3e77a89ec85b951bc3d9
Diameter
43114142
Circumference
135447071.77303
Area
1.4599210714766E+15
Volume
4.1962162922957E+22
Surface area
5.8396842859065E+15
Circumference
135447071.77303
Perimeter
86228284
Area
464707310099041
Diagonal
30486302.17324
Surface area
2788243860594246
Volume
1.0017728478024E+22
Space diagonal
37337942.23437
Perimeter
64671213
Area
2.0122416793505E+14
Altitude
18668971.117185
Surface area
2.0122416793505E+14
Volume
1.1806006231494E+21
Height
10162100.724413