20001978 (number)

20001978 is an even 8-digits composite number following 20001977 and preceding 20001979. In scientific notation, it is written as 2.0001978 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors. There are 6259680 positive integers (up to 20001978) that are relatively prime to 20001978.

Interesting facts

Basic properties

Name

Name twenty million one thousand nine hundred seventy-eight

Notation

Scientific notation 2.0001978 × 10^7
Engineering notation 2.0001978 × 10^6

Prime Factorization of 20001978

Prime Factorization 2 × 333 × 9 × 71 × 47

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20001978
Product of the distinct prime numbers

The prime factorization of 20001978 is 2 × 333 × 9 × 71 × 47. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 10, 54, 59, 484, 103, 6287, 8778, 13823, 68022, 97279, 486592, 7023693, 8598344, 16235356, 34281853, 823858164, 275864971, 4338322868, 1305265405

Basic calculations (n = 20001978)

Multiplication

n×y
n×2 40003956
n×3 60005934
n×4 80007912
n×5 100009890

Division

n÷y
n÷2 10000989
n÷3 6667326
n÷3 5000494.5
n÷5 4000395.6

Exponentiation

ny
n2 400079123912484
n3 8.0023738347568E+21
n4 1.6006330539058E+29
n5 3.2015827130297E+36

Nth Root

y√n
2√n 4472.357096655
3√n 271.45070989458
4√n 66.875683896727
5√n 28.85456882765

Divisors of 20001978

1, 2, 9, 18, 47, 71, 94, 142, 333, 423, 639, 666, 846, 1278, 2997, 3337, 5994, 6674, 15651, 23643, 30033, 31302, 47286, 60066, 140859, 212787, 281718, 425574, 1111221, 2222442, 10000989, 20001978

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20001977
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20001978 can be divided by 32 positive divisors. The sum of these divisors (counting 20001978) is 1, the average is 0.03125.

Base conversion 20001978

Base System Value
2 Binary 1001100010011010010111010
3 Ternary 1101122012120000
4 Quaternary 1030103102322
5 Quinary 20110030403
6 Senary 1552413430
8 Octal 114232272
10 Decimal 20001978
12 Duodecimal 6847276
16 Hexadecimal 13134ba
20 Vigesimal 6504ii
36 Base36 bwpmi

Cryptographic Hash Functions

md5 e5aa1c80bd6f204980ef4ad7247e1ad9
sha1 c39dc10b4a515f118725103747d9391fad47a24e
sha256 f0c8d106d601130dce8104fb3d790a6b4938c5a30224085cbd3ca51f93d8a697
sha512 dc438dad4565264e81cf2974e55917a4f971fca142b477ccb828efa2e63a66c8eb9b44f209300323cc6170571cadf13e8f0943553768b52923617f5bcb8dd3c2
ripemd-160 f4d7a67790fe90e8ed98d3b40c62a3814742ecdf

20001978 as geometric shapes

Circle

Radius = n
Diameter 40003956
Circumference 125676134.28413
Area 1.2568856365381E+15

Sphere

Radius = n
Volume 3.3520265134068E+22
Surface area 5.0275425461524E+15
Circumference 125676134.28413

Square

Length = n
Perimeter 80007912
Area 400079123912484
Diagonal 28287068.561888

Cube

Length = n
Surface area 2400474743474904
Volume 8.0023738347568E+21
Space diagonal 34644442.147875

Equilateral Triangle

Length = n
Perimeter 60005934
Area 1.7323934241602E+14
Altitude 17322221.073937

Triangular Pyramid

Length = n
Surface area 1.7323934241602E+14
Volume 9.4308880069105E+20
Height 9429022.8539628