81252922 is an even 8-digits composite number following 81252921
and preceding 81252923 . In scientific notation, it is written as 8.1252922 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 32 positive divisors.
There are 37964160 positive integers (up to 81252922) that are relatively prime to 81252922.
81252922 has 32 divisors, whose sum is 130222080
The reverse of 81252922 is 22925218
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million two hundred fifty-two thousand nine hundred twenty-two
Scientific notation
8.1252922 × 10^7
Engineering notation
8.1252922 × 10^6
Prime Factorization
2 × 79 × 53 × 31 × 313
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81252922
Product of the distinct prime numbers
The prime factorization of 81252922 is 2 × 79 × 53 × 31 × 313.
Since it has a total of 5 prime factors.
6 , 9 , 82 , 5 , 973 , 847 , 1407 , 6210 , 27882 , 3182 , 187150 , 531435 , 8010950 , 7466281 , 70850964 , 66494289 , 489304924 , 221869575 , 973476007 , 7962618573
n×2
162505844
n×3
243758766
n×4
325011688
n×5
406264610
n÷2
40626461
n÷3
27084307.333333
n÷3
20313230.5
n÷5
16250584.4
n2
6602037333538084
n3
5.3643482450306E+23
n4
4.3586896953431E+31
n5
3.5415627383791E+39
2 √n
9014.0402706001
3 √n
433.12474471214
4 √n
94.942299690918
5 √n
38.191595118229
1 , 2 , 31 , 53 , 62 , 79 , 106 , 158 , 313 , 626 , 1643 , 2449 , 3286 , 4187 , 4898 , 8374 , 9703 , 16589 , 19406 , 24727 , 33178 , 49454 , 129797 , 259594 , 514259 , 766537 , 1028518 , 1310531 , 1533074 , 2621062 , 40626461 , 81252922
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81252921
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81252922 can be divided by 32 positive divisors.
The sum of these divisors (counting 81252922) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110101111101001000111010
3
Ternary
12122220002001111
4
Quaternary
10311331020322
5
Quinary
131300043142
6
Senary
12021310534
8
Octal
465751072
10
Decimal
81252922
12
Duodecimal
2326544a
16
Hexadecimal
4d7d23a
20
Vigesimal
157gc62
36
Base36
1cdj5m
md5
31c757b9e45952cde52dd20403c7a0ec
sha1
f222fd2ceba64c44fa809aa1bc0b9cdd830cdd08
sha256
ed10e22e2b942d787afdd7d3b05141d214b0186b13807e637231850fa4caa45d
sha512
675253f58cb209cbbc1cb884bfddf32f845c54249e035d5d4c4cb8b1cbe4b2679b60e0f5edbe0a38f27df945ebc1f021a896f0a2beb215cab84610e6f2cfc683
ripemd-160
68f12e9bad4601f3f2f767b64053100167f28b7a
Diameter
162505844
Circumference
510527165.67581
Area
2.0740911985769E+16
Volume
2.2470129383847E+24
Surface area
8.2963647943075E+16
Circumference
510527165.67581
Perimeter
325011688
Area
6602037333538084
Diagonal
114908984.27484
Surface area
39612224001228504
Volume
5.3643482450306E+23
Space diagonal
140734189.16743
Perimeter
243758766
Area
2.8587660237886E+15
Altitude
70367094.583715
Surface area
2.8587660237886E+15
Volume
6.3219450345121E+22
Height
38302994.758281