81937255 is an odd 8-digits composite number following 81937254
and preceding 81937256 . In scientific notation, it is written as 8.1937255 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 65219616 positive integers (up to 81937255) that are relatively prime to 81937255.
81937255 has 8 divisors, whose sum is 98820000
The reverse of 81937255 is 55273918
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million nine hundred thirty-seven thousand two hundred fifty-five
Scientific notation
8.1937255 × 10^7
Engineering notation
8.1937255 × 10^6
Prime Factorization
5 × 199 × 82349
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81937255
Product of the distinct prime numbers
The prime factorization of 81937255 is 5 × 199 × 82349.
Since it has a total of 3 prime factors.
10 , 5 , 97 , 51 , 990 , 590 , 4870 , 1278 , 76214 , 2505 , 56894 , 227627 , 74456 , 6333818 , 82879293 , 90340576 , 231436935 , 53523229 , 4712608872 , 5647547476
n×2
163874510
n×3
245811765
n×4
327749020
n×5
409686275
n÷2
40968627.5
n÷3
27312418.333333
n÷3
20484313.75
n÷5
16387451
n2
6713713756935025
n3
5.5010327609899E+23
n4
4.5073952410059E+31
n5
3.6932359324808E+39
2 √n
9051.9199620854
3 √n
434.33730953271
4 √n
95.141578513736
5 √n
38.255711365843
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81937254
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81937255 can be divided by 8 positive divisors.
The sum of these divisors (counting 81937255) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000100100001101100111
3
Ternary
12201011211210011
4
Quaternary
10320210031213
5
Quinary
131433443010
6
Senary
12044111051
8
Octal
470441547
10
Decimal
81937255
12
Duodecimal
23535487
16
Hexadecimal
4e24367
20
Vigesimal
15c232f
36
Base36
1cs76v
md5
7ff934ddf50eb5fe7f7537c4c1a9caeb
sha1
8cfa1b71cf97299a7cb9977efb1219adb7fd085f
sha256
e7be3a8288b3083f1c6a28320e8445dc95c4ee16a7468360d6cf1a7bef44ab91
sha512
548a33f44039516d9126ebe63121102a7b6fa552333fc5a16daae780fcc123514df86866e430863a1f4e9b086282b916acac06c72ee5e5ed4dbcdde4335edd6e
ripemd-160
1d974462164d983f14769734c5804a588f53d022
Diameter
163874510
Circumference
514826956.72663
Area
2.1091753817092E+16
Volume
2.3042672145444E+24
Surface area
8.4367015268367E+16
Circumference
514826956.72663
Perimeter
327749020
Area
6713713756935025
Diagonal
115876777.28462
Surface area
40282282541610150
Volume
5.5010327609899E+23
Space diagonal
141919488.69273
Perimeter
245811765
Area
2.9071233336214E+15
Altitude
70959744.346364
Surface area
2.9071233336214E+15
Volume
6.4830292813756E+22
Height
38625592.428208