21557070 is an even 8-digits composite number following 21557069
and preceding 21557071 . In scientific notation, it is written as 2.1557070 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 5748480 positive integers (up to 21557070) that are relatively prime to 21557070.
21557070 has 16 divisors, whose sum is 38324160
The reverse of 21557070 is 07075512
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million five hundred fifty-seven thousand seventy
Scientific notation
2.1557070 × 10^7
Engineering notation
2.1557070 × 10^6
Prime Factorization
2 × 15 × 9 × 79841
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21557070
Product of the distinct prime numbers
The prime factorization of 21557070 is 2 × 15 × 9 × 79841.
Since it has a total of 4 prime factors.
1 , 7 , 49 , 3 , 403 , 608 , 1963 , 7646 , 26003 , 66898 , 469887 , 805867 , 6415269 , 1790030 , 57710884 , 40998621 , 881714637 , 773371568 , 1807755290 , 6655397466
n×2
43114140
n×3
64671210
n×4
86228280
n×5
107785350
n÷2
10778535
n÷3
7185690
n÷3
5389267.5
n÷5
4311414
n2
464707266984900
n3
1.0017727083902E+22
n4
2.1595284398858E+29
n5
4.6553105745608E+36
2 √n
4642.9591856918
3 √n
278.31070449214
4 √n
68.139263172504
5 √n
29.289903874813
1 , 2 , 9 , 15 , 18 , 30 , 135 , 270 , 79841 , 159682 , 718569 , 1197615 , 1437138 , 2395230 , 10778535 , 21557070
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21557069
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21557070 can be divided by 16 positive divisors.
The sum of these divisors (counting 21557070) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001110111101001110
3
Ternary
1111120012202000
4
Quaternary
1102032331032
5
Quinary
21004311240
6
Senary
2050013130
8
Octal
122167516
10
Decimal
21557070
12
Duodecimal
72771a6
16
Hexadecimal
148ef4e
20
Vigesimal
6eecda
36
Base36
cu1ji
md5
2ad1412cfbcc69714c5d6e9ef6536f40
sha1
da574e7f4c119bbf84e709c90a8dc9ecc0f11835
sha256
5a0263203ff1cca1ef3cdc1292e28c5d8c9dd52bbef3516a9877821faabfcb3c
sha512
45649621e8f1725928cab53410a878227c36ff16f04623f4a7b28eb93eaf418cfb0efe45770df1c7cad3a3f433b0466b85cfe84ff7bd64f1c022c9dc9dac6e3b
ripemd-160
708b0a8e20bd817439a972851c08c644bc9b1293
Diameter
43114140
Circumference
135447065.48984
Area
1.4599209360296E+15
Volume
4.1962157083273E+22
Surface area
5.8396837441182E+15
Circumference
135447065.48984
Perimeter
86228280
Area
464707266984900
Diagonal
30486300.759026
Surface area
2788243601909400
Volume
1.0017727083902E+22
Space diagonal
37337940.502319
Perimeter
64671210
Area
2.0122414926608E+14
Altitude
18668970.251159
Surface area
2.0122414926608E+14
Volume
1.1806004588506E+21
Height
10162100.253009