81497838 is an even 8-digits composite number following 81497837
and preceding 81497839 . In scientific notation, it is written as 8.1497838 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 27165944 positive integers (up to 81497838) that are relatively prime to 81497838.
81497838 has 8 divisors, whose sum is 162995688
The reverse of 81497838 is 83879418
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighty-one million four hundred ninety-seven thousand eight hundred thirty-eight
Scientific notation
8.1497838 × 10^7
Engineering notation
8.1497838 × 10^6
Prime Factorization
2 × 3 × 13582973
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81497838
Product of the distinct prime numbers
The prime factorization of 81497838 is 2 × 3 × 13582973.
Since it has a total of 3 prime factors.
10 , 4 , 6 , 83 , 657 , 411 , 6474 , 2934 , 9415 , 21379 , 74235 , 415395 , 7851623 , 9345054 , 13185433 , 58746923 , 865157628 , 307803008 , 4455954957 , 1506909308
n×2
162995676
n×3
244493514
n×4
325991352
n×5
407489190
n÷2
40748919
n÷3
27165946
n÷3
20374459.5
n÷5
16299567.6
n2
6641897598674244
n3
5.4130029450934E+23
n4
4.4114803711275E+31
n5
3.5952611262633E+39
2 √n
9027.6152997345
3 √n
433.55948918124
4 √n
95.013763738389
5 √n
38.214591153488
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
-81497837
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 81497838 can be divided by 8 positive divisors.
The sum of these divisors (counting 81497838) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110111000111011101110
3
Ternary
12200100112000110
4
Quaternary
10312320323232
5
Quinary
131330412323
6
Senary
12030440450
8
Octal
466707356
10
Decimal
81497838
12
Duodecimal
23363126
16
Hexadecimal
4db8eee
20
Vigesimal
15974bi
36
Base36
1cis4u
md5
a5c7dfa14fde0b9cbe31501721f52b19
sha1
7baca43cee5e912d9b3dae325ad7199b6635160a
sha256
8c44d15b4454d7c6c0da755c3eff6bce9a7c870849898c56b38b0ebd1f9b8a5d
sha512
b4f8568d801df61cba61f9e3875e8cde4e8fb0aec92232557419c6a842cd0ff37a255bc521008fd412992aff3c137e8c425fe4666c1052d0bde17075f026b21d
ripemd-160
012bf263fde7b29f9bdbfb2b5e32f6b8e5dbba54
Diameter
162995676
Circumference
512066018.2885
Area
2.0866136701891E+16
Volume
2.2673933714887E+24
Surface area
8.3464546807563E+16
Circumference
512066018.2885
Perimeter
325991352
Area
6641897598674244
Diagonal
115255347.80369
Surface area
39851385592045464
Volume
5.4130029450934E+23
Space diagonal
141158396.12302
Perimeter
244493514
Area
2.8760260248934E+15
Altitude
70579198.061509
Surface area
2.8760260248934E+15
Volume
6.3792851484305E+22
Height
38418449.267895