1640985857 is an odd 10-digits composite number following 1640985856
and preceding 1640985858 . In scientific notation, it is written as 1.640985857 × 10^9.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 1406559300 positive integers (up to 1640985857) that are relatively prime to 1640985857.
1640985857 has 4 divisors, whose sum is 1875412416
The reverse of 1640985857 is 7585890461
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 53
Digital Root 8
Name
one billion six hundred forty million nine hundred eighty-five thousand eight hundred fifty-seven
Scientific notation
1.640985857 × 10^9
Engineering notation
1.640985857 × 10^9
Prime Factorization
7 × 234426551
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1640985857
Product of the distinct prime numbers
The prime factorization of 1640985857 is 7 × 234426551.
Since it has a total of 2 prime factors.
4 , 3 , 17 , 35 , 778 , 523 , 4635 , 2587 , 17489 , 41608 , 79260 , 366484 , 1513981 , 8718812 , 8729058 , 52517424 , 873155588 , 963337519 , 1778698298 , 7812930260
n×2
3281971714
n×3
4922957571
n×4
6563943428
n×5
8204929285
n÷2
820492928.5
n÷3
546995285.66667
n÷3
410246464.25
n÷5
328197171.4
n2
2692834582874024449
n3
4.4189034657368E+27
n4
7.2513580907223E+36
n5
1.1899376070918E+46
2 √n
40509.083635649
3 √n
1179.5099605062
4 √n
201.26868518388
5 √n
69.666014784901
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
-1640985856
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 1640985857 can be divided by 4 positive divisors.
The sum of these divisors (counting 1640985857) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100001110011110111010100000001
3
Ternary
11020100210201101222
4
Quaternary
1201303313110001
5
Quinary
11330043021412
6
Senary
430500004425
8
Octal
14163672401
10
Decimal
1640985857
12
Duodecimal
399690715
16
Hexadecimal
61cf7501
20
Vigesimal
15cg34ch
36
Base36
r500sh
md5
9545acf1503e451d680cac610f908f7d
sha1
460a1a0687c678e8b964fb84ab2129d2947d1115
sha256
3afe0efaa2cbab4f95cf36cc3e65ff73b9790d496772db828b5a5bf9778ebd17
sha512
198cfaf5015a1e6349671fb7adbbc62d3da29b227d31cd6df01a986f0ef411eb637b4f39cf326c42186f09d975bba63b15b1e7f04d0fee0f7a76ad2cd5deb9ca
ripemd-160
e0f05cd451e902fc903c86f693aafd339f74ecec
Diameter
3281971714
Circumference
10310618225.992
Area
8.4597893428896E+18
Volume
1.8509859553175E+28
Surface area
3.3839157371558E+19
Circumference
10310618225.992
Perimeter
6563943428
Area
2692834582874024449
Diagonal
2320704454.6318
Surface area
1.6157007497244E+19
Volume
4.4189034657368E+27
Space diagonal
2842270878.826
Perimeter
4922957571
Area
1.1660315784791E+18
Altitude
1421135439.413
Surface area
1.1660315784791E+18
Volume
5.2077276767187E+26
Height
773568151.54395