81802007 is an odd 8-digits composite number following 81802006
and preceding 81802008 . In scientific notation, it is written as 8.1802007 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 67067352 positive integers (up to 81802007) that are relatively prime to 81802007.
81802007 has 4 divisors, whose sum is 82310256
The reverse of 81802007 is 70020818
Previous prime number is 161
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million eight hundred two thousand seven
Scientific notation
8.1802007 × 10^7
Engineering notation
8.1802007 × 10^6
Prime Factorization
161 × 508087
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81802007
Product of the distinct prime numbers
The prime factorization of 81802007 is 161 × 508087.
Since it has a total of 2 prime factors.
7 , 8 , 64 , 24 , 144 , 797 , 533 , 9097 , 75087 , 51893 , 603514 , 727476 , 3585929 , 6263775 , 6612736 , 52674075 , 829988438 , 139563000 , 5956861612 , 6626911523
n×2
163604014
n×3
245406021
n×4
327208028
n×5
409010035
n÷2
40901003.5
n÷3
27267335.666667
n÷3
20450501.75
n÷5
16360401.4
n2
6691568349228049
n3
5.4738372094453E+23
n4
4.4777086972391E+31
n5
3.6628555819551E+39
2 √n
9044.4461964235
3 √n
434.0982013549
4 √n
95.102293328939
5 √n
38.243073822676
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
-81802006
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 81802007 can be divided by 4 positive divisors.
The sum of these divisors (counting 81802007) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000000011001100010111
3
Ternary
12200220222020222
4
Quaternary
10320003030113
5
Quinary
131420131012
6
Senary
12041144555
8
Octal
470031427
10
Decimal
81802007
12
Duodecimal
2348b15b
16
Hexadecimal
4e03317
20
Vigesimal
15b5507
36
Base36
1cpatz
md5
9b41a0a25232a1e753fa79c4a5c21334
sha1
f14a63c2d18321d1cdd37ef2ce5d4ea865ae51cc
sha256
dca39adb19693754e67f333b59bf4f33a80eecc3f25ec029b1b8eafc5446bbc3
sha512
3ed31463b42e1a72570fd824ff380f65ce80b92a0a3fe30b674141387b531a423c787a6dff5af6bae3052cb62ff1d0bea58ffa39439360c1afbf151b51dca252
ripemd-160
870e970ce6bb16b7e6204d9e9ce608b8779f8e4d
Diameter
163604014
Circumference
513977168.4802
Area
2.1022181966929E+16
Volume
2.292875568552E+24
Surface area
8.4088727867715E+16
Circumference
513977168.4802
Perimeter
327208028
Area
6691568349228049
Diagonal
115685507.72874
Surface area
40149410095368294
Volume
5.4738372094453E+23
Space diagonal
141685232.2851
Perimeter
245406021
Area
2.8975340907957E+15
Altitude
70842616.142552
Surface area
2.8975340907957E+15
Volume
6.4509790165167E+22
Height
38561835.90958