1978393521 is an odd 10-digits composite number following 1978393520
and preceding 1978393522 . In scientific notation, it is written as 1.978393521 × 10^9.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 1216886976 positive integers (up to 1978393521) that are relatively prime to 1978393521.
1978393521 has 16 divisors, whose sum is 2842137536
The reverse of 1978393521 is 1253938791
Previous prime number is 2293
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 48
Digital Root 3
Name
one billion nine hundred seventy-eight million three hundred ninety-three thousand five hundred twenty-one
Scientific notation
1.978393521 × 10^9
Engineering notation
1.978393521 × 10^9
Prime Factorization
3 × 13 × 2293 × 22123
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1978393521
Product of the distinct prime numbers
The prime factorization of 1978393521 is 3 × 13 × 2293 × 22123.
Since it has a total of 4 prime factors.
9 , 10 , 34 , 40 , 840 , 129 , 2055 , 6172 , 40230 , 4795 , 100165 , 380386 , 6624729 , 2313864 , 56527853 , 13489950 , 407116522 , 607540456 , 2155704723 , 4343957902
n×2
3956787042
n×3
5935180563
n×4
7913574084
n×5
9891967605
n÷2
989196760.5
n÷3
659464507
n÷3
494598380.25
n÷5
395678704.2
n2
3914040923934777441
n3
7.7435132048414E+27
n4
1.5319716354236E+37
n5
3.0308427578779E+46
2 √n
44479.135794213
3 √n
1255.3675364651
4 √n
210.90077238885
5 √n
72.320685869903
1 , 3 , 13 , 39 , 2293 , 6879 , 22123 , 29809 , 66369 , 89427 , 287599 , 862797 , 50728039 , 152184117 , 659464507 , 1978393521
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
-1978393520
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 1978393521 can be divided by 16 positive divisors.
The sum of these divisors (counting 1978393521) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110101111010111110001110110001
3
Ternary
12002212200210201010
4
Quaternary
1311322332032301
5
Quinary
13022432043041
6
Senary
524151501133
8
Octal
16572761661
10
Decimal
1978393521
12
Duodecimal
4726877a9
16
Hexadecimal
75ebe3b1
20
Vigesimal
1ai4j3g1
36
Base36
wpvu7l
md5
3878d4dbc1a39838e1d13ecf8b062d62
sha1
ef7ce02dbe259c79780c57c256ab7e9cb2181f7d
sha256
ba6129fde1df45e1a09f6a3907fba31aa44f6904d91e5a412abb88e25ceb0d3c
sha512
50942ab066a5a5803a59794748a4a59376ddf5dc8ef39f668473e39abca59fad7281aa6eb28961f8a1fbbe0f6e9913cd4237e3934863be4ddc557b20197ad96d
ripemd-160
0545645b908184dac7b2471c7317d4c126b7b22c
Diameter
3956787042
Circumference
12430613102.966
Area
1.2296322212483E+19
Volume
3.2435952263074E+28
Surface area
4.9185288849933E+19
Circumference
12430613102.966
Perimeter
7913574084
Area
3914040923934777441
Diagonal
2797870949.1093
Surface area
2.3484245543609E+19
Volume
7.7435132048414E+27
Space diagonal
3426678095.7371
Perimeter
5935180563
Area
1.6948294357897E+18
Altitude
1713339047.8685
Surface area
1.6948294357897E+18
Volume
9.1258178289182E+26
Height
932623649.70309