81970108 is an even 8-digits composite number following 81970107
and preceding 81970109 . In scientific notation, it is written as 8.1970108 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 37259120 positive integers (up to 81970108) that are relatively prime to 81970108.
81970108 has 12 divisors, whose sum is 156488472
The reverse of 81970108 is 80107918
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million nine hundred seventy thousand one hundred eight
Scientific notation
8.1970108 × 10^7
Engineering notation
8.1970108 × 10^6
Prime Factorization
2 × 2 × 11 × 1862957
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40985054
Product of the distinct prime numbers
The prime factorization of 81970108 is 2 × 2 × 11 × 1862957.
Since it has a total of 4 prime factors.
7 , 5 , 53 , 47 , 519 , 780 , 8435 , 7910 , 86524 , 60686 , 643063 , 393369 , 9578397 , 1282819 , 42323060 , 6093959 , 255280124 , 195834605 , 7438248335 , 370755998
n×2
163940216
n×3
245910324
n×4
327880432
n×5
409850540
n÷2
40985054
n÷3
27323369.333333
n÷3
20492527
n÷5
16394021.6
n2
6719098605531664
n3
5.5076523835808E+23
n4
4.5146286070858E+31
n5
3.7006459450271E+39
2 √n
9053.7344781035
3 √n
434.39535141264
4 √n
95.151113908895
5 √n
38.258778623501
1 , 2 , 4 , 11 , 22 , 44 , 1862957 , 3725914 , 7451828 , 20492527 , 40985054 , 81970108
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
-81970107
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 81970108 can be divided by 12 positive divisors.
The sum of these divisors (counting 81970108) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100111000101100001110111100
3
Ternary
12201020111211221
4
Quaternary
10320230032330
5
Quinary
131441020413
6
Senary
12044523124
8
Octal
470541674
10
Decimal
81970108
12
Duodecimal
235504a4
16
Hexadecimal
4e2c3bc
20
Vigesimal
15c6558
36
Base36
1cswjg
md5
49cfee84987381ce1fd25bd4860b61dc
sha1
bc8b43c923ed064af58a3f9c7d6f970946ef50d7
sha256
ad8cd3ba5c55df389e3553be4c91cd3efc2fe0715b5c98e54e42d88056853c73
sha512
43563548a0a795916b584fc4b8d08609455ab2bdf124ea3268863812d788e90db97fb6b76f4f360c5f3927c9d00609cb6e31997d98c51898a9ea8b2e198b3208
ripemd-160
7a9386419ae0e1fb0ea7b3c02d682828dfeba1a0
Diameter
163940216
Circumference
515033378.21352
Area
2.1108670817884E+16
Volume
2.3070400355712E+24
Surface area
8.4434683271535E+16
Circumference
515033378.21352
Perimeter
327880432
Area
6719098605531664
Diagonal
115923238.44279
Surface area
40314591633189984
Volume
5.5076523835808E+23
Space diagonal
141976391.75791
Perimeter
245910324
Area
2.9094550414615E+15
Altitude
70988195.878954
Surface area
2.9094550414615E+15
Volume
6.4908305814137E+22
Height
38641079.480929