81749104 is an even 8-digits composite number following 81749103
and preceding 81749105 . In scientific notation, it is written as 8.1749104 × 10^7.
The sum of its digits is 34. It has a total of 6 prime factors and 20 positive divisors.
There are 40808768 positive integers (up to 81749104) that are relatively prime to 81749104.
81749104 has 20 divisors, whose sum is 158643864
The reverse of 81749104 is 40194718
Previous prime number is 677
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million seven hundred forty-nine thousand one hundred four
Scientific notation
8.1749104 × 10^7
Engineering notation
8.1749104 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 677 × 7547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
10218638
Product of the distinct prime numbers
The prime factorization of 81749104 is 2 × 2 × 2 × 2 × 677 × 7547.
Since it has a total of 6 prime factors.
8 , 1 , 52 , 5 , 754 , 973 , 1961 , 2060 , 72650 , 58293 , 76429 , 904819 , 8399188 , 5033046 , 48676255 , 42270438 , 842662039 , 5066801 , 5920433425 , 4040995284
n×2
163498208
n×3
245247312
n×4
326996416
n×5
408745520
n÷2
40874552
n÷3
27249701.333333
n÷3
20437276
n÷5
16349820.8
n2
6682916004802816
n3
5.4632239549989E+23
n4
4.466136632725E+31
n5
3.6510266806684E+39
2 √n
9041.5211109636
3 √n
434.00460116736
4 √n
95.086913457971
5 √n
38.238126029871
1 , 2 , 4 , 8 , 16 , 677 , 1354 , 2708 , 5416 , 7547 , 10832 , 15094 , 30188 , 60376 , 120752 , 5109319 , 10218638 , 20437276 , 40874552 , 81749104
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81749103
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81749104 can be divided by 20 positive divisors.
The sum of these divisors (counting 81749104) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110111110110010001110000
3
Ternary
12200211021200121
4
Quaternary
10313312101300
5
Quinary
131411432404
6
Senary
12040100024
8
Octal
467662160
10
Decimal
81749104
12
Duodecimal
23464614
16
Hexadecimal
4df6470
20
Vigesimal
15aicf4
36
Base36
1co60g
md5
67babc1586b488aa7db9e03364a77bbc
sha1
3fcb58907ff7fcd9fcf4c785314ec8c68eaec541
sha256
f0776fb1ea5400e7725dde2e97b9c6d637660b4b41e518528a2a2091cccb88eb
sha512
d9e89e0335cfa1856ada19c2b9c0b5b56592b0e0df808deb926fc415183e05bede3fdb94bd3ca1a4a7eb970c4082e3f6e51766a4ea0acd796e37eb787b57d907
ripemd-160
94f81163b8c5d71e88e85f7970df0f8f3b815389
Diameter
163498208
Circumference
513644769.1279
Area
2.0994999825246E+16
Volume
2.2884298989254E+24
Surface area
8.3979999300985E+16
Circumference
513644769.1279
Perimeter
326996416
Area
6682916004802816
Diagonal
115610691.58865
Surface area
40097496028816896
Volume
5.4632239549989E+23
Space diagonal
141593601.60123
Perimeter
245247312
Area
2.8937875157584E+15
Altitude
70796800.800616
Surface area
2.8937875157584E+15
Volume
6.4384711762009E+22
Height
38536897.196216