21093988 is an even 8-digits composite number following 21093987
and preceding 21093989 . In scientific notation, it is written as 2.1093988 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors.
There are 10444392 positive integers (up to 21093988) that are relatively prime to 21093988.
21093988 has 12 divisors, whose sum is 37273600
The reverse of 21093988 is 88939012
Previous prime number is 103
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million ninety-three thousand nine hundred eighty-eight
Scientific notation
2.1093988 × 10^7
Engineering notation
2.1093988 × 10^6
Prime Factorization
2 × 2 × 103 × 51199
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10546994
Product of the distinct prime numbers
The prime factorization of 21093988 is 2 × 2 × 103 × 51199.
Since it has a total of 4 prime factors.
2 , 4 , 75 , 83 , 966 , 767 , 8115 , 3891 , 44391 , 27740 , 936180 , 671400 , 6591081 , 8911101 , 38481464 , 27118592 , 509607187 , 77911528 , 7569575254 , 1195208632
n×2
42187976
n×3
63281964
n×4
84375952
n×5
105469940
n÷2
10546994
n÷3
7031329.3333333
n÷3
5273497
n÷5
4218797.6
n2
444956329744144
n3
9.385903480147E+21
n4
1.9798613537938E+29
n5
4.176317163859E+36
2 √n
4592.8191778035
3 √n
276.30340156389
4 √n
67.770341431953
5 √n
29.162969182898
1 , 2 , 4 , 103 , 206 , 412 , 51199 , 102398 , 204796 , 5273497 , 10546994 , 21093988
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21093987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21093988 can be divided by 12 positive divisors.
The sum of these divisors (counting 21093988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000011101111001100100
3
Ternary
1110200200111211
4
Quaternary
1100131321210
5
Quinary
20400001423
6
Senary
2032041204
8
Octal
120357144
10
Decimal
21093988
12
Duodecimal
7093204
16
Hexadecimal
141de64
20
Vigesimal
6bgej8
36
Base36
ck484
md5
ef926e8762ed42cc88892e31593fff6f
sha1
e2f5faf8acc8643359bd159d60da20343d50cf63
sha256
8639f22f0dfdfa29996932d7f7ad1f2ed1ba9c615fe557e72743ac9d8cdaeb8f
sha512
62fb94d68853ff807cdf126145ef8440b4e55a778ee74ddfcba929a6d313f2f96e2371df8751c659311535b699ff2f8e9342dec4e8ddcb3a6c5011fbf78ea1ef
ripemd-160
83d0731e416611b66e7e38aa1519f2029aae1b36
Diameter
42187976
Circumference
132537435.47142
Area
1.3978715366925E+15
Volume
3.931558056071E+22
Surface area
5.5914861467699E+15
Circumference
132537435.47142
Perimeter
84375952
Area
444956329744144
Diagonal
29831403.914135
Surface area
2669737978464864
Volume
9.385903480147E+21
Space diagonal
36535858.950248
Perimeter
63281964
Area
1.9267174256656E+14
Altitude
18267929.475124
Surface area
1.9267174256656E+14
Volume
1.1061393330624E+21
Height
9943801.3047118