128402457 is an odd 9-digits composite number following 128402456
and preceding 128402458 . In scientific notation, it is written as 1.28402457 × 10^8.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 85601636 positive integers (up to 128402457) that are relatively prime to 128402457.
128402457 has 4 divisors, whose sum is 171203280
The reverse of 128402457 is 754204821
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
one hundred twenty-eight million four hundred two thousand four hundred fifty-seven
Scientific notation
1.28402457 × 10^8
Engineering notation
1.28402457 × 10^6
Prime Factorization
3 × 42800819
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128402457
Product of the distinct prime numbers
The prime factorization of 128402457 is 3 × 42800819.
Since it has a total of 2 prime factors.
1 , 9 , 51 , 21 , 82 , 997 , 3073 , 1403 , 16934 , 68702 , 677744 , 110083 , 5331781 , 906097 , 20096552 , 79506522 , 531394065 , 41781041 , 3235665825 , 1335826721
n×2
256804914
n×3
385207371
n×4
513609828
n×5
642012285
n÷2
64201228.5
n÷3
42800819
n÷3
32100614.25
n÷5
25680491.4
n2
16487190963636849
n3
2.1169958287592E+24
n4
2.7182746587143E+32
n5
3.4903314497975E+40
2 √n
11331.480794671
3 √n
504.49605905816
4 √n
106.44942834356
5 √n
41.85185064686
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
-128402456
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 128402457 can be divided by 4 positive divisors.
The sum of these divisors (counting 128402457) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101001110100010000011001
3
Ternary
22221121112001120
4
Quaternary
13221310100121
5
Quinary
230332334312
6
Senary
20424035453
8
Octal
751642031
10
Decimal
128402457
12
Duodecimal
37002b89
16
Hexadecimal
7a74419
20
Vigesimal
202a62h
36
Base36
24g3yx
md5
f524dcff176a117b7dc41d465a132ba4
sha1
ca9aad6bdc5bdc39c0e715f5de3a51f045f87b44
sha256
6e96f1ac0ded3de564daedba783a5a602e3bade4eba94f7e76bfa722896b1508
sha512
792487d1207b31a0f02698ac083c0d3917175fa1a4ba53ffcc697a56006855543a7624b6f24537a03e6dcd7e73e265efb4552a7133f704c55117c3b2c3500046
ripemd-160
cec98ff822b77574f08d61f39674b5d24a45b1d3
Diameter
256804914
Circumference
806776431.22816
Area
5.1796038009694E+16
Volume
8.8676513910801E+24
Surface area
2.0718415203877E+17
Circumference
806776431.22816
Perimeter
513609828
Area
16487190963636849
Diagonal
181588496.13143
Surface area
98923145781821094
Volume
2.1169958287592E+24
Space diagonal
222399579.34068
Perimeter
385207371
Area
7.1391631057774E+15
Altitude
111199789.67034
Surface area
7.1391631057774E+15
Volume
2.4949035104321E+23
Height
60529498.710476