67686921 is an odd 8-digits composite number following 67686920
and preceding 67686922 . In scientific notation, it is written as 6.7686921 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 14 positive divisors.
There are 45124128 positive integers (up to 67686921) that are relatively prime to 67686921.
67686921 has 14 divisors, whose sum is 101485050
The reverse of 67686921 is 12968676
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
sixty-seven million six hundred eighty-six thousand nine hundred twenty-one
Scientific notation
6.7686921 × 10^7
Engineering notation
6.7686921 × 10^6
Prime Factorization
9 × 3 × 9 × 3 × 92849
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2506923
Product of the distinct prime numbers
The prime factorization of 67686921 is 9 × 3 × 9 × 3 × 92849.
Since it has a total of 5 prime factors.
7 , 10 , 9 , 17 , 489 , 957 , 5248 , 4954 , 63648 , 3442 , 203883 , 916333 , 8645456 , 9851539 , 11913603 , 64015967 , 713649027 , 645469022 , 6461983498 , 1320245570
n×2
135373842
n×3
203060763
n×4
270747684
n×5
338434605
n÷2
33843460.5
n÷3
22562307
n÷3
16921730.25
n÷5
13537384.2
n2
4581519274460241
n3
3.1010893319037E+23
n4
2.0990318862251E+31
n5
1.420770054594E+39
2 √n
8227.2061478974
3 √n
407.5381343614
4 √n
90.703947807675
5 √n
36.821455520773
1 , 3 , 9 , 27 , 81 , 243 , 729 , 92849 , 278547 , 835641 , 2506923 , 7520769 , 22562307 , 67686921
14 divisors
τ
Total Divisors
14
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-67686920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.071428571428571
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
14
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 67686921 can be divided by 14 positive divisors.
The sum of these divisors (counting 67686921) is 1, the average is 0.071428571428571.
Base
System
Value
2
Binary
100000010001101001000001001
3
Ternary
11201100212000000
4
Quaternary
10002031020021
5
Quinary
114311440141
6
Senary
10414433213
8
Octal
402151011
10
Decimal
67686921
12
Duodecimal
1a802809
16
Hexadecimal
408d209
20
Vigesimal
1130h61
36
Base36
14ark9
md5
08a908de3eb1d440b8c57570f51bde34
sha1
cc6b9e32dfa191e70a72aa98082509c0dcdc0147
sha256
5886c4df22a02d24186af54b883c5ca5bffe4514df6ef6a0d4d001cc9cbde72a
sha512
9781da7f86970019db542bd354a4d62c515960600351255cb207237d7565ec6148fdca5f2e4374be166cd2d12f5755ee1fb637197f0b93da8fe5232e89f60e1f
ripemd-160
a900dcc5a25343a25f6f9307bbece8ff704dc0a1
Diameter
135373842
Circumference
425289467.51543
Area
1.4393267294924E+16
Volume
1.2989812617646E+24
Surface area
5.7573069179697E+16
Circumference
425289467.51543
Perimeter
270747684
Area
4581519274460241
Diagonal
95723761.673476
Surface area
27489115646761446
Volume
3.1010893319037E+23
Space diagonal
117237186.1799
Perimeter
203060763
Area
1.9838560398053E+15
Altitude
58618593.08995
Surface area
1.9838560398053E+15
Volume
3.6546688260906E+22
Height
31907920.557825