1978394915 is an odd 10-digits composite number following 1978394914
and preceding 1978394916 . In scientific notation, it is written as 1.978394915 × 10^9.
The sum of its digits is 56. It has a total of 2 prime factors and 4 positive divisors.
There are 1356613632 positive integers (up to 1978394915) that are relatively prime to 1978394915.
1978394915 has 4 divisors, whose sum is 2034920520
The reverse of 1978394915 is 5194938791
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 56
Digital Root 2
Name
one billion nine hundred seventy-eight million three hundred ninety-four thousand nine hundred fifteen
Scientific notation
1.978394915 × 10^9
Engineering notation
1.978394915 × 10^9
Prime Factorization
35 × 56525569
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1978394915
Product of the distinct prime numbers
The prime factorization of 1978394915 is 35 × 56525569.
Since it has a total of 2 prime factors.
10 , 4 , 98 , 56 , 368 , 233 , 7846 , 5908 , 16075 , 17226 , 497331 , 709989 , 4155510 , 9955223 , 42355572 , 33021387 , 670227200 , 4796087 , 7182251991 , 5013649149
n×2
3956789830
n×3
5935184745
n×4
7913579660
n×5
9891974575
n÷2
989197457.5
n÷3
659464971.66667
n÷3
494598728.75
n÷5
395678983
n2
3914046439697857225
n3
7.7435295733721E+27
n4
1.5319759532111E+37
n5
3.0308534357352E+46
2 √n
44479.151464478
3 √n
1255.367831314
4 √n
210.90080953965
5 √n
72.320696061506
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
-1978394914
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 1978394915 can be divided by 4 positive divisors.
The sum of these divisors (counting 1978394915) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101111010111110100100100011
3
Ternary
12002212200212121202
4
Quaternary
1311322332210203
5
Quinary
13022432114130
6
Senary
524151511415
8
Octal
16572764443
10
Decimal
1978394915
12
Duodecimal
47268856b
16
Hexadecimal
75ebe923
20
Vigesimal
1ai4j75f
36
Base36
wpvvab
md5
6bce28d0b87d7cf6733d08327f07a62d
sha1
78fde7cf0cd4624a32cb3ab9ff3a180fb6b63c96
sha256
f50538277006f76ec88d99a320a9dbaedfe31092dc1e78e5f6aebd0f29abf424
sha512
cea443b02e06558402b1208e203655879c76f4e870df36c75b3611c3494e50b7f626b47aae4f5681ec67adaeddcf55bf89251f7358196148379bcdcd5ef21c7d
ripemd-160
b0de09086266a8653bf17a15ad82e73bee565bc7
Diameter
3956789830
Circumference
12430621861.727
Area
1.2296339540764E+19
Volume
3.2436020827415E+28
Surface area
4.9185358163056E+19
Circumference
12430621861.727
Perimeter
7913579660
Area
3914046439697857225
Diagonal
2797872920.523
Surface area
2.3484278638187E+19
Volume
7.7435295733721E+27
Space diagonal
3426680510.2159
Perimeter
5935184745
Area
1.6948318241852E+18
Altitude
1713340255.108
Surface area
1.6948318241852E+18
Volume
9.1258371194166E+26
Height
932624306.84099