78661641 is an odd 8-digits composite number following 78661640
and preceding 78661642 . In scientific notation, it is written as 7.8661641 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 52027920 positive integers (up to 78661641) that are relatively prime to 78661641.
78661641 has 8 divisors, whose sum is 105708544
The reverse of 78661641 is 14616687
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-eight million six hundred sixty-one thousand six hundred forty-one
Scientific notation
7.8661641 × 10^7
Engineering notation
7.8661641 × 10^6
Prime Factorization
3 × 127 × 206461
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78661641
Product of the distinct prime numbers
The prime factorization of 78661641 is 3 × 127 × 206461.
Since it has a total of 3 prime factors.
10 , 3 , 81 , 41 , 416 , 126 , 2575 , 3320 , 49017 , 21933 , 574156 , 552582 , 9454802 , 361490 , 9861870 , 6921567 , 409147740 , 385078771 , 684886201 , 786464331
n×2
157323282
n×3
235984923
n×4
314646564
n×5
393308205
n÷2
39330820.5
n÷3
26220547
n÷3
19665410.25
n÷5
15732328.2
n2
6187653764812881
n3
4.8673099908001E+23
n4
3.8287059113203E+31
n5
3.0117228989086E+39
2 √n
8869.1398117292
3 √n
428.47057342648
4 √n
94.176110621161
5 √n
37.944829038493
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
-78661640
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 78661641 can be divided by 8 positive divisors.
The sum of these divisors (counting 78661641) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101100000100100000001001
3
Ternary
12111000102111010
4
Quaternary
10230010200021
5
Quinary
130114133031
6
Senary
11445554133
8
Octal
454044011
10
Decimal
78661641
12
Duodecimal
22415949
16
Hexadecimal
4b04809
20
Vigesimal
14bce21
36
Base36
1atzpl
md5
35c6d39cd9ffbc6ed253235a769c2b21
sha1
4ce84ccfd5110a45d141e9572b0ee88eb80d17e8
sha256
54d29505e9a749ba55071c2a00d1399ebe7dd0ae771ef9ba7aadafc4ef300cbe
sha512
adeef326caec09b83809b53a0979e9c51b845749757618280e9a9b5f41ca9ebc7563c49b9136d32d6f167bc30540d48bdbcac9bd50f72e7b6997af613e64c5cb
ripemd-160
6e87899c6926b1f8d143fdab4674387951c51576
Diameter
157323282
Circumference
494245666.96984
Area
1.9439087610493E+16
Volume
2.0388140413122E+24
Surface area
7.7756350441973E+16
Circumference
494245666.96984
Perimeter
314646564
Area
6187653764812881
Diagonal
111244359.54072
Surface area
37125922588877286
Volume
4.8673099908001E+23
Space diagonal
136245958.81874
Perimeter
235984923
Area
2.6793326750752E+15
Altitude
68122979.409372
Surface area
2.6793326750752E+15
Volume
5.7361798343863E+22
Height
37081453.180241