29128021 is an odd 8-digits composite number following 29128020
and preceding 29128022 . In scientific notation, it is written as 2.9128021 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 25302528 positive integers (up to 29128021) that are relatively prime to 29128021.
29128021 has 12 divisors, whose sum is 33326692
The reverse of 29128021 is 12082192
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-nine million one hundred twenty-eight thousand twenty-one
Scientific notation
2.9128021 × 10^7
Engineering notation
2.9128021 × 10^6
Prime Factorization
13 × 17 × 17 × 7753
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1713413
Product of the distinct prime numbers
The prime factorization of 29128021 is 13 × 17 × 17 × 7753.
Since it has a total of 4 prime factors.
5 , 2 , 41 , 85 , 997 , 816 , 489 , 3314 , 69363 , 86616 , 346075 , 190772 , 2564618 , 2881593 , 58623262 , 97451778 , 826641373 , 755670740 , 5066576607 , 4412139989
n×2
58256042
n×3
87384063
n×4
116512084
n×5
145640105
n÷2
14564010.5
n÷3
9709340.3333333
n÷3
7282005.25
n÷5
5825604.2
n2
848441607376441
n3
2.4713424956935E+22
n4
7.1985316112752E+29
n5
2.0967897994239E+37
2 √n
5397.0381692184
3 √n
307.68311212423
4 √n
73.464536813475
5 √n
31.107291278426
1 , 13 , 17 , 221 , 289 , 3757 , 7753 , 100789 , 131801 , 1713413 , 2240617 , 29128021
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
-29128020
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 29128021 can be divided by 12 positive divisors.
The sum of these divisors (counting 29128021) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101111000111010101010101
3
Ternary
2000210212010121
4
Quaternary
1233013111111
5
Quinary
24424044041
6
Senary
2520151541
8
Octal
157072525
10
Decimal
29128021
12
Duodecimal
99085b1
16
Hexadecimal
1bc7555
20
Vigesimal
921011
36
Base36
hcbbp
md5
1f5fa706d391baddd78c1ce698de87f1
sha1
fdd066651797d98cd1f82fb9a58fa3952922b9c3
sha256
6a6ba3814293d0df7747dace93504d8accda37d0b0c6d00480fb1571a4adeb6e
sha512
a065514204d2d2f35c0bfbb345210bb3e79aeb83b8c7358e61ea1a6067afba19cc62217714039ca10ac0a372c5e5b84c458e32ea35cefd0d6b9e4b680401c6be
ripemd-160
ee9808c01713d0a4754d1d25f889602c2f9579ca
Diameter
58256042
Circumference
183016753.57442
Area
2.6654579207337E+15
Volume
1.0351935238633E+23
Surface area
1.0661831682935E+16
Circumference
183016753.57442
Perimeter
116512084
Area
848441607376441
Diagonal
41193242.343288
Surface area
5090649644258646
Volume
2.4713424956935E+22
Space diagonal
50451212.295933
Perimeter
87384063
Area
3.6738599280785E+14
Altitude
25225606.147967
Surface area
3.6738599280785E+14
Volume
2.9125050622322E+21
Height
13731080.781096