81127959 is an odd 8-digits composite number following 81127958
and preceding 81127960 . In scientific notation, it is written as 8.1127959 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 12 positive divisors.
There are 49168240 positive integers (up to 81127959) that are relatively prime to 81127959.
81127959 has 12 divisors, whose sum is 118898808
The reverse of 81127959 is 95972118
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million one hundred twenty-seven thousand nine hundred fifty-nine
Scientific notation
8.1127959 × 10^7
Engineering notation
8.1127959 × 10^6
Prime Factorization
3 × 11 × 11 × 223493
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7375269
Product of the distinct prime numbers
The prime factorization of 81127959 is 3 × 11 × 11 × 223493.
Since it has a total of 4 prime factors.
8 , 2 , 7 , 30 , 574 , 266 , 2308 , 9969 , 59909 , 73323 , 651242 , 129028 , 3260393 , 5840051 , 65014987 , 47823784 , 692165075 , 445215888 , 9962797885 , 6426644204
n×2
162255918
n×3
243383877
n×4
324511836
n×5
405639795
n÷2
40563979.5
n÷3
27042653
n÷3
20281989.75
n÷5
16225591.8
n2
6581745731505681
n3
5.3396359785402E+23
n4
4.3319376874193E+31
n5
3.5144126309551E+39
2 √n
9007.1060280203
3 √n
432.90258926285
4 √n
94.905774471421
5 √n
38.179840525616
1 , 3 , 11 , 33 , 121 , 363 , 223493 , 670479 , 2458423 , 7375269 , 27042653 , 81127959
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81127958
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81127959 can be divided by 12 positive divisors.
The sum of these divisors (counting 81127959) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110101011110101000010111
3
Ternary
12122122201122020
4
Quaternary
10311132220113
5
Quinary
131232043314
6
Senary
12014504223
8
Octal
465365027
10
Decimal
81127959
12
Duodecimal
23205073
16
Hexadecimal
4d5ea17
20
Vigesimal
1570jhj
36
Base36
1cauqf
md5
34b83c7362ee5d27e4b6449425122abe
sha1
cc01637087a80ccfeca225dc73356d08ec857705
sha256
d2763d8996147d1f25da4cea96700abb5a3998426e8e3818143b90a8b8756c87
sha512
c2e5991b5e0e3d89258c441d2c6b62c508b9c3593e9361fae1cbfc95a9065bda17dd0ee9b610f9b5423953fa69b5a285137f2a3c26ef83f1e5df363dcdce86e0
ripemd-160
a095dcd3a3ca0a546b3cbaf1c4a9fd181a45f212
Diameter
162255918
Circumference
509741999.99027
Area
2.0677164037894E+16
Volume
2.2366614884034E+24
Surface area
8.2708656151577E+16
Circumference
509741999.99027
Perimeter
324511836
Area
6581745731505681
Diagonal
114732259.90545
Surface area
39490474389034086
Volume
5.3396359785402E+23
Space diagonal
140517746.90236
Perimeter
243383877
Area
2.8499795023669E+15
Altitude
70258873.451182
Surface area
2.8499795023669E+15
Volume
6.2928213491557E+22
Height
38244086.635149