642646870 is an even 9-digits composite number following 642646869
and preceding 642646871 . In scientific notation, it is written as 6.42646870 × 10^8.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 254562624 positive integers (up to 642646870) that are relatively prime to 642646870.
642646870 has 16 divisors, whose sum is 1167996960
The reverse of 642646870 is 078646246
Previous prime number is 103
Is Prime? no
Number parity even
Number length 9
Sum of Digits 43
Digital Root 7
Name
six hundred forty-two million six hundred forty-six thousand eight hundred seventy
Scientific notation
6.42646870 × 10^8
Engineering notation
6.42646870 × 10^6
Prime Factorization
2 × 5 × 103 × 623929
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
642646870
Product of the distinct prime numbers
The prime factorization of 642646870 is 2 × 5 × 103 × 623929.
Since it has a total of 4 prime factors.
8 , 5 , 48 , 87 , 352 , 201 , 6179 , 6222 , 93899 , 20678 , 905209 , 912835 , 2813959 , 5639893 , 62241360 , 19530212 , 649863353 , 93207896 , 5984445493 , 9165633823
n×2
1285293740
n×3
1927940610
n×4
2570587480
n×5
3213234350
n÷2
321323435
n÷3
214215623.33333
n÷3
160661717.5
n÷5
128529374
n2
412994999520796900
n3
2.6540994376769E+26
n4
1.7056486962918E+35
n5
1.0961297959915E+44
2 √n
25350.480666054
3 √n
862.96026459761
4 √n
159.21834274371
5 √n
57.755650456033
1 , 2 , 5 , 10 , 103 , 206 , 515 , 1030 , 623929 , 1247858 , 3119645 , 6239290 , 64264687 , 128529374 , 321323435 , 642646870
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-642646869
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 642646870 can be divided by 16 positive divisors.
The sum of these divisors (counting 642646870) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110010011100000001101010110
3
Ternary
1122210020211202221
4
Quaternary
212103200031112
5
Quinary
2304004144440
6
Senary
143434052554
8
Octal
4623401526
10
Decimal
642646870
12
Duodecimal
15b27a15a
16
Hexadecimal
264e0356
20
Vigesimal
a0gah3a
36
Base36
amm5hy
md5
54bbe60652f8bdf60d0f68a156ee0cd1
sha1
f52f5a91b9be47d955df37535e588b5f7a705ede
sha256
a9873eae215b69c4d4ec6433b6c7c4da84024ee13b2c2da38d2a30855d072de3
sha512
343658ec418f34ebe2003d353eab1f598368c1b6b8c21fe0779609de3e12631619352a5555f2d18892d4ff2097c2363de6a325f113a18eb19b1ff45eebeef761
ripemd-160
0aee241a5fa9e923045989d43c58c6a23b5d9b20
Diameter
1285293740
Circumference
4037869371.2889
Area
1.2974620564639E+18
Volume
1.111746572707E+27
Surface area
5.1898482258554E+18
Circumference
4037869371.2889
Perimeter
2570587480
Area
412994999520796900
Diagonal
908839919.37062
Surface area
2477969997124781400
Volume
2.6540994376769E+26
Space diagonal
1113097030.1651
Perimeter
1927940610
Area
1.7883208061048E+17
Altitude
556548515.08256
Surface area
1.7883208061048E+17
Volume
3.1278861838746E+25
Height
302946639.79021