21693988 is an even 8-digits composite number following 21693987
and preceding 21693989 . In scientific notation, it is written as 2.1693988 × 10^7.
The sum of its digits is 46. It has a total of 4 prime factors and 12 positive divisors.
There are 10553760 positive integers (up to 21693988) that are relatively prime to 21693988.
21693988 has 12 divisors, whose sum is 38990812
The reverse of 21693988 is 88939612
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty-one million six hundred ninety-three thousand nine hundred eighty-eight
Scientific notation
2.1693988 × 10^7
Engineering notation
2.1693988 × 10^6
Prime Factorization
2 × 2 × 37 × 146581
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10846994
Product of the distinct prime numbers
The prime factorization of 21693988 is 2 × 2 × 37 × 146581.
Since it has a total of 4 prime factors.
10 , 3 , 65 , 63 , 6 , 800 , 9225 , 2419 , 7190 , 63239 , 915813 , 320618 , 4571514 , 7284127 , 97429687 , 46641978 , 539415539 , 860673724 , 8207736089 , 821005151
n×2
43387976
n×3
65081964
n×4
86775952
n×5
108469940
n÷2
10846994
n÷3
7231329.3333333
n÷3
5423497
n÷5
4338797.6
n2
470629115344144
n3
1.0209822380726E+22
n4
2.2149176420961E+29
n5
4.8050396748621E+36
2 √n
4657.6805386372
3 √n
278.89868410953
4 √n
68.247201690892
5 √n
29.327016202565
1 , 2 , 4 , 37 , 74 , 148 , 146581 , 293162 , 586324 , 5423497 , 10846994 , 21693988
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
-21693987
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 21693988 can be divided by 12 positive divisors.
The sum of these divisors (counting 21693988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010110000011000100100
3
Ternary
1111211011120001
4
Quaternary
1102300120210
5
Quinary
21023201423
6
Senary
2052551044
8
Octal
122603044
10
Decimal
21693988
12
Duodecimal
7322484
16
Hexadecimal
14b0624
20
Vigesimal
6fbej8
36
Base36
cwz6s
md5
41a2b02700eeda12b88af8cd863a19b1
sha1
00de2b92d759e1e1c3dca6b5f037acde68ebde4a
sha256
28d0589009a4a138015498535c8fc3fb17cbd059511c0212f741f9cfd2737a52
sha512
1da88463d18241da96b408771e5a9bbc1e7f3e10727c586f4cef36de82cdbe37a4ca191c972ee33924272de2aad9af1ac6c79ea30978550198d0c17e01886031
ripemd-160
6c10a7ecb3ba37a04b9d00f41d5078a5788c706c
Diameter
43387976
Circumference
136307346.65573
Area
1.4785249713306E+15
Volume
4.2766803980996E+22
Surface area
5.9140998853225E+15
Circumference
136307346.65573
Perimeter
86775952
Area
470629115344144
Diagonal
30679932.051559
Surface area
2823774692064864
Volume
1.0209822380726E+22
Space diagonal
37575089.43479
Perimeter
65081964
Area
2.0378838482431E+14
Altitude
18787544.717395
Surface area
2.0378838482431E+14
Volume
1.203239106687E+21
Height
10226644.017186