81229042 is an even 8-digits composite number following 81229041
and preceding 81229043 . In scientific notation, it is written as 8.1229042 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 40614520 positive integers (up to 81229042) that are relatively prime to 81229042.
81229042 has 4 divisors, whose sum is 121843566
The reverse of 81229042 is 24092218
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million two hundred twenty-nine thousand forty-two
Scientific notation
8.1229042 × 10^7
Engineering notation
8.1229042 × 10^6
Prime Factorization
2 × 40614521
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81229042
Product of the distinct prime numbers
The prime factorization of 81229042 is 2 × 40614521.
Since it has a total of 2 prime factors.
5 , 7 , 58 , 21 , 165 , 345 , 4018 , 618 , 59998 , 64226 , 849664 , 208109 , 9865798 , 7340157 , 87502237 , 97235906 , 184986401 , 202068860 , 2795596150 , 5369694994
n×2
162458084
n×3
243687126
n×4
324916168
n×5
406145210
n÷2
40614521
n÷3
27076347.333333
n÷3
20307260.5
n÷5
16245808.4
n2
6598157264237764
n3
5.3596199353937E+23
n4
4.3535679283614E+31
n5
3.5363615210272E+39
2 √n
9012.7155730113
3 √n
433.08230918254
4 √n
94.935323104792
5 √n
38.189349974292
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81229041
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81229042 can be divided by 4 positive divisors.
The sum of these divisors (counting 81229042) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101110111010011110010
3
Ternary
12122211212022001
4
Quaternary
10311313103302
5
Quinary
131243312132
6
Senary
12021004214
8
Octal
465672362
10
Decimal
81229042
12
Duodecimal
2325366a
16
Hexadecimal
4d774f2
20
Vigesimal
157dcc2
36
Base36
1cd0qa
md5
edee82f5bcbd30b80291ee75a2661491
sha1
ecaaca82e8b7a16748bd38fdfda2d0efddde57d5
sha256
a4c6575f8f1a5568333266b1cbbc959cded18cb87731c8ff58acdd2009cf38bf
sha512
984812e98f2b9e698c3f80f98a0fef285cbd397dcc8816cebfde66163c0b2a330e3bff5fac0dce43e02b9674c2be3df3a99f27def4c951c72149383c3f9e2ad1
ripemd-160
4ddcd450d0cd2c3ba126da1e40294c67442e7b81
Diameter
162458084
Circumference
510377123.21067
Area
2.0728722388559E+16
Volume
2.2450323486755E+24
Surface area
8.2914889554238E+16
Circumference
510377123.21067
Perimeter
324916168
Area
6598157264237764
Diagonal
114875212.85497
Surface area
39588943585426584
Volume
5.3596199353937E+23
Space diagonal
140692827.79415
Perimeter
243687126
Area
2.8570859044974E+15
Altitude
70346413.897073
Surface area
2.8570859044974E+15
Volume
6.3163726681659E+22
Height
38291737.618325