21690742 is an even 8-digits composite number following 21690741
and preceding 21690743 . In scientific notation, it is written as 2.1690742 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 9669888 positive integers (up to 21690742) that are relatively prime to 21690742.
21690742 has 16 divisors, whose sum is 36264240
The reverse of 21690742 is 24709612
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million six hundred ninety thousand seven hundred forty-two
Scientific notation
2.1690742 × 10^7
Engineering notation
2.1690742 × 10^6
Prime Factorization
2 × 17 × 19 × 33577
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21690742
Product of the distinct prime numbers
The prime factorization of 21690742 is 2 × 17 × 19 × 33577.
Since it has a total of 4 prime factors.
6 , 4 , 84 , 86 , 831 , 693 , 4539 , 7919 , 83297 , 28740 , 343230 , 11198 , 7596087 , 7540929 , 37902395 , 85890249 , 894445168 , 264038246 , 3918660592 , 4329623143
n×2
43381484
n×3
65072226
n×4
86762968
n×5
108453710
n÷2
10845371
n÷3
7230247.3333333
n÷3
5422685.5
n÷5
4338148.4
n2
470488288510564
n3
1.0205240080104E+22
n4
2.213592296256E+29
n5
4.8014459391276E+36
2 √n
4657.3320688995
3 √n
278.88477318507
4 √n
68.244648646612
5 √n
29.326138529058
1 , 2 , 17 , 19 , 34 , 38 , 323 , 646 , 33577 , 67154 , 570809 , 637963 , 1141618 , 1275926 , 10845371 , 21690742
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
-21690741
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 21690742 can be divided by 16 positive divisors.
The sum of these divisors (counting 21690742) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010101111100101110110
3
Ternary
1111211000002211
4
Quaternary
1102233211312
5
Quinary
21023100432
6
Senary
2052524034
8
Octal
122574566
10
Decimal
21690742
12
Duodecimal
732061a
16
Hexadecimal
14af976
20
Vigesimal
6fb6h2
36
Base36
cwwom
md5
fddf90ab15e742404af1d75f3d38ea1d
sha1
aa20914074b538fef0640380fc12403bff988ab6
sha256
ac0250de7d2ffdc40d45d771f9f327d52cfd2f82367792708f435d3c95503d64
sha512
d38a77c11902845745f52df117d20dd935f3ab23d81621519ebf9100545663786e2b529caaadfeeb6de9087bd20c02b4e7b9f48b29a1af29733247c9e7e930b3
ripemd-160
853d7c54b299195b3a452675faee52e5b3c4d6ef
Diameter
43381484
Circumference
136286951.43622
Area
1.4780825507848E+15
Volume
4.2747609685034E+22
Surface area
5.9123302031393E+15
Circumference
136286951.43622
Perimeter
86762968
Area
470488288510564
Diagonal
30675341.514336
Surface area
2822929731063384
Volume
1.0205240080104E+22
Space diagonal
37569467.197868
Perimeter
65072226
Area
2.0372740501661E+14
Altitude
18784733.598934
Surface area
2.0372740501661E+14
Volume
1.2026990773797E+21
Height
10225113.838112