1978392457 is an odd 10-digits prime number following 1978392456
and preceding 1978392458 . In scientific notation, it is written as 1.978392457 × 10^9.
The sum of its digits is 55. It has a total of 1 prime factors and 2 positive divisors.
There are 1978392456 positive integers (up to 1978392457) that are relatively prime to 1978392457.
1978392457 has 2 divisors, whose sum is 1978392458
The reverse of 1978392457 is 7542938791
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 55
Digital Root 1
Name
one billion nine hundred seventy-eight million three hundred ninety-two thousand four hundred fifty-seven
Scientific notation
1.978392457 × 10^9
Engineering notation
1.978392457 × 10^9
Prime Factorization
1978392457
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1978392457
Product of the distinct prime numbers
The prime factorization of 1978392457 is 1978392457.
Since it has a total of 1 prime factors.
1 , 7 , 15 , 32 , 252 , 396 , 3611 , 1719 , 25984 , 90430 , 649542 , 20024 , 8143571 , 929727 , 62794904 , 14717028 , 427013785 , 420172856 , 6212375538 , 5890214104
n×2
3956784914
n×3
5935177371
n×4
7913569828
n×5
9891962285
n÷2
989196228.5
n÷3
659464152.33333
n÷3
494598114.25
n÷5
395678491.4
n2
3914036713914496849
n3
7.7435007112295E+27
n4
1.5319683397871E+37
n5
3.0308346077975E+46
2 √n
44479.123833547
3 √n
1255.3673114152
4 √n
210.9007440327
5 √n
72.320678090942
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1978392458
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
989196229
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
44479.123844788
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999989891
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1978392457 can be divided by 2 positive divisors.
The sum of these divisors (counting 1978392457) is 1978392458, the average is 989196229.
Base
System
Value
2
Binary
1110101111010111101111110001001
3
Ternary
12002212200202020201
4
Quaternary
1311322331332021
5
Quinary
13022432024312
6
Senary
524151452201
8
Octal
16572757611
10
Decimal
1978392457
12
Duodecimal
472687061
16
Hexadecimal
75ebdf89
20
Vigesimal
1ai4j12h
36
Base36
wpvte1
md5
16f23725674538907fac23ba758f9944
sha1
339671631ccaac82772eb0d39c0fd852c73fd227
sha256
fff113491122ed2714885a8cc261215583eb4f61c6ebb1040c23cd20af574805
sha512
283c32a43b26b3432eb62622cf85df958ebcff37a37c0621fa1bfa91da38c7f974d58e48541da074f6c5dab8afe4e1377c0713f9323af741889137aa4663bb8b
ripemd-160
603ede849f2674fffa9238a701fb07d8366a7650
Diameter
3956784914
Circumference
12430606417.657
Area
1.2296308986315E+19
Volume
3.2435899929955E+28
Surface area
4.9185235945258E+19
Circumference
12430606417.657
Perimeter
7913569828
Area
3914036713914496849
Diagonal
2797869444.386
Surface area
2.3484220283487E+19
Volume
7.7435007112295E+27
Space diagonal
3426676252.835
Perimeter
5935177371
Area
1.6948276127975E+18
Altitude
1713338126.4175
Surface area
1.6948276127975E+18
Volume
9.1258031050554E+26
Height
932623148.12868