678691890 is an even 9-digits composite number following 678691889
and preceding 678691891 . In scientific notation, it is written as 6.78691890 × 10^8.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 180984480 positive integers (up to 678691890) that are relatively prime to 678691890.
678691890 has 16 divisors, whose sum is 1357383960
The reverse of 678691890 is 098196876
Previous prime number is 5
Is Prime? no
Number parity even
Number length 9
Sum of Digits 54
Digital Root 9
Name
six hundred seventy-eight million six hundred ninety-one thousand eight hundred ninety
Scientific notation
6.78691890 × 10^8
Engineering notation
6.78691890 × 10^6
Prime Factorization
2 × 9 × 5 × 7541021
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
678691890
Product of the distinct prime numbers
The prime factorization of 678691890 is 2 × 9 × 5 × 7541021.
Since it has a total of 4 prime factors.
2 , 2 , 86 , 14 , 543 , 228 , 5066 , 524 , 70590 , 20996 , 196454 , 678392 , 6371909 , 1283 , 5138145 , 98853829 , 645321270 , 992729377 , 7014605735 , 9653288915
n×2
1357383780
n×3
2036075670
n×4
2714767560
n×5
3393459450
n÷2
339345945
n÷3
226230630
n÷3
169672972.5
n÷5
135738378
n2
460622681551772100
n3
3.1262087831924E+26
n4
2.1217325475995E+35
n5
1.4400026728048E+44
2 √n
26051.715682465
3 √n
878.8016963072
4 √n
161.40543882554
5 √n
58.389469830672
1 , 2 , 5 , 9 , 10 , 18 , 45 , 90 , 7541021 , 15082042 , 37705105 , 67869189 , 75410210 , 135738378 , 339345945 , 678691890
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
-678691889
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 678691890 can be divided by 16 positive divisors.
The sum of these divisors (counting 678691890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101000011101000000010000110010
3
Ternary
1202022002010020200
4
Quaternary
220131000100302
5
Quinary
2342221120030
6
Senary
151202420030
8
Octal
5035002062
10
Decimal
678691890
12
Duodecimal
16b361616
16
Hexadecimal
28740432
20
Vigesimal
ac1g9ea
36
Base36
b82q0i
md5
e2173985a4012dd453f4bb187e9eeee2
sha1
d8e7436afcbfd7ce57fff9b817053fcdc1f93e13
sha256
9f49923f366495d716b5a36bf7f792f360fb8e91da7b8a68061dcf257028d8b0
sha512
efeb5b16d80bfd228c23a322bce509bc891f529c042340aa367772556a503f93c1fafde1ef304ed38d86083ab3c3c843a2ee7328f58bc5de78417d7b4e8fa46a
ripemd-160
74735fa963dff52a134f2e1fcbb8adbe7cb5f28f
Diameter
1357383780
Circumference
4264346911.3499
Area
1.4470888324399E+18
Volume
1.3095032729154E+27
Surface area
5.7883553297595E+18
Circumference
4264346911.3499
Perimeter
2714767560
Area
460622681551772100
Diagonal
959815275.51063
Surface area
2763736089310632600
Volume
3.1262087831924E+26
Space diagonal
1175528836.1649
Perimeter
2036075670
Area
1.9945547189157E+17
Altitude
587764418.08247
Surface area
1.9945547189157E+17
Volume
3.6842723833338E+25
Height
319938425.17021