79681921 is an odd 8-digits composite number following 79681920
and preceding 79681922 . In scientific notation, it is written as 7.9681921 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 71250000 positive integers (up to 79681921) that are relatively prime to 79681921.
79681921 has 8 divisors, whose sum is 88351488
The reverse of 79681921 is 12918697
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
seventy-nine million six hundred eighty-one thousand nine hundred twenty-one
Scientific notation
7.9681921 × 10^7
Engineering notation
7.9681921 × 10^6
Prime Factorization
11 × 61 × 118751
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
79681921
Product of the distinct prime numbers
The prime factorization of 79681921 is 11 × 61 × 118751.
Since it has a total of 3 prime factors.
5 , 3 , 50 , 75 , 836 , 904 , 3838 , 2089 , 37573 , 94133 , 74749 , 705688 , 6319424 , 9414522 , 76306175 , 97388985 , 480856124 , 366046949 , 9102974225 , 9058966003
n×2
159363842
n×3
239045763
n×4
318727684
n×5
398409605
n÷2
39840960.5
n÷3
26560640.333333
n÷3
19920480.25
n÷5
15936384.2
n2
6349208534250241
n3
5.0591713283865E+23
n4
4.0312449011396E+31
n5
3.2121733774426E+39
2 √n
8926.4730437054
3 √n
430.31511245187
4 √n
94.48001399082
5 √n
38.042754891882
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
-79681920
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 79681921 can be divided by 8 positive divisors.
The sum of these divisors (counting 79681921) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101111111101100110000001
3
Ternary
12112221021001021
4
Quaternary
10233331212001
5
Quinary
130344310141
6
Senary
11523505441
8
Octal
457754601
10
Decimal
79681921
12
Duodecimal
22828281
16
Hexadecimal
4bfd981
20
Vigesimal
14i04g1
36
Base36
1bfuyp
md5
0044de1a3acfbcc2b69b522914c6f2d0
sha1
67b22ea51f9975d34b910cfadf6598e3ce1ef468
sha256
f54365a41ea6954945f23f793616784bafefb040b2ddcc3e80a0b1419120f8fb
sha512
df083898293f046121e98b8a139d04440cb916e886bee78af4141985b32faf1480811b3620252141b6c7ae39a4a1dab197537f82a2f46245cfee95905ec3e07b
ripemd-160
16a2c9cdf3846e5f90498c750ca965330d5763d9
Diameter
159363842
Circumference
500656275.27504
Area
1.994662688731E+16
Volume
2.1191807304682E+24
Surface area
7.9786507549241E+16
Circumference
500656275.27504
Perimeter
318727684
Area
6349208534250241
Diagonal
112687253.35414
Surface area
38095251205501446
Volume
5.0591713283865E+23
Space diagonal
138013135.61669
Perimeter
239045763
Area
2.7492879422928E+15
Altitude
69006567.808345
Surface area
2.7492879422928E+15
Volume
5.9622905891445E+22
Height
37562417.784714