20451749 is an odd 8-digits composite number following 20451748
and preceding 20451750 . In scientific notation, it is written as 2.0451749 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20392800 positive integers (up to 20451749) that are relatively prime to 20451749.
20451749 has 4 divisors, whose sum is 20510700
The reverse of 20451749 is 94715402
Previous prime number is 349
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million four hundred fifty-one thousand seven hundred forty-nine
Scientific notation
2.0451749 × 10^7
Engineering notation
2.0451749 × 10^6
Prime Factorization
349 × 58601
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20451749
Product of the distinct prime numbers
The prime factorization of 20451749 is 349 × 58601.
Since it has a total of 2 prime factors.
6 , 5 , 67 , 87 , 464 , 880 , 5562 , 6393 , 87636 , 9123 , 551526 , 732691 , 6989785 , 4847708 , 78455160 , 8178317 , 965664263 , 750555003 , 7674543155 , 4679048431
n×2
40903498
n×3
61355247
n×4
81806996
n×5
102258745
n÷2
10225874.5
n÷3
6817249.6666667
n÷3
5112937.25
n÷5
4090349.8
n2
418274037159001
n3
8.5544356211926E+21
n4
1.7495317016129E+29
n5
3.578098322893E+36
2 √n
4522.3609984166
3 √n
273.47029011288
4 √n
67.248501830276
5 √n
28.983183790196
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20451748
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20451749 can be divided by 4 positive divisors.
The sum of these divisors (counting 20451749) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000001000110100101
3
Ternary
1102111001112012
4
Quaternary
1032001012211
5
Quinary
20213423444
6
Senary
2010204005
8
Octal
116010645
10
Decimal
20451749
12
Duodecimal
6a23605
16
Hexadecimal
13811a5
20
Vigesimal
67g979
36
Base36
c6co5
md5
ad0aff171479a25b58781be07bf8142f
sha1
8382fd18e0c832db3f59881a484b6771933ba5fc
sha256
5ede7b8c1c6c97c6bd99bc78790c1886ce2fa6f7acb118b5453d41b61cf6275c
sha512
9f5348f1bbf3ad1feb0ce19fcaefb6593bfefa9b68b1ee9c0d80c5a263fd1a7d079298068f8b159b089027ce460803d87085d040bda431de9ff453f12d5a0860
ripemd-160
a98b8b7356e6fb490ec4efbeba2e92ad84bc0dc8
Diameter
40903498
Circumference
128502128.82292
Area
1.3140466423261E+15
Volume
3.5832736137527E+22
Surface area
5.2561865693042E+15
Circumference
128502128.82292
Perimeter
81806996
Area
418274037159001
Diagonal
28923140.81005
Surface area
2509644222954006
Volume
8.5544356211926E+21
Space diagonal
35423468.371646
Perimeter
61355247
Area
1.8111797096159E+14
Altitude
17711734.185823
Surface area
1.8111797096159E+14
Volume
1.0081499061615E+21
Height
9641046.9366835