2018961981 (number)

2018961981 is an odd 10-digits composite number following 2018961980 and preceding 2018961982. In scientific notation, it is written as 2.018961981 × 10^9. The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors. There are 1345974648 positive integers (up to 2018961981) that are relatively prime to 2018961981.

Interesting facts

Basic properties

Name

Name two billion eighteen million nine hundred sixty-one thousand nine hundred eighty-one

Notation

Scientific notation 2.018961981 × 10^9
Engineering notation 2.018961981 × 10^9

Prime Factorization of 2018961981

Prime Factorization 9 × 224329109

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 2018961981
Product of the distinct prime numbers

The prime factorization of 2018961981 is 9 × 224329109. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 9, 92, 86, 579, 820, 2849, 4818, 42538, 81783, 879871, 669957, 9146147, 2847635, 58634606, 14525768, 734629388, 679941626, 4421291186, 1037170086

Basic calculations (n = 2018961981)

Multiplication

n×y
n×2 4037923962
n×3 6056885943
n×4 8075847924
n×5 10094809905

Division

n÷y
n÷2 1009480990.5
n÷3 672987327
n÷3 504740495.25
n÷5 403792396.2

Exponentiation

ny
n2 4076207480723444361
n3 8.2297079302484E+27
n4 1.6615467425906E+37
n5 3.3545997029448E+46

Nth Root

y√n
2√n 44932.860814776
3√n 1263.8902985647
4√n 211.9737267087
5√n 72.614880696438

Divisors of 2018961981

1, 9, 224329109, 2018961981

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 -2018961980
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 2018961981 can be divided by 4 positive divisors. The sum of these divisors (counting 2018961981) is 1, the average is 0.25.

Base conversion 2018961981

Base System Value
2 Binary 1111000010101101110101000111101
3 Ternary 12012201000220011200
4 Quaternary 1320111232220331
5 Quinary 13113323240411
6 Senary 532201210113
8 Octal 17025565075
10 Decimal 2018961981
12 Duodecimal 484190939
16 Hexadecimal 7856ea3d
20 Vigesimal 1baia4j1
36 Base36 xe1d19

Cryptographic Hash Functions

md5 3a31b51410750281fd4abd79f77d655f
sha1 cd09c44ad419dac338b71b527201c1ffddfc755d
sha256 f04044f83a660de920dd355391b15c493cbaa2ece384acac8827b03f3427bd8d
sha512 d6c5cbad05ad7c075f0459458a6eaed97f40a84784d06f0fe5be174642f7d6a86d9b9101693668bbd0f74aada8c8563260501fcaddb6c3f02823e09b15f96cf5
ripemd-160 66003a363fcd970c6aed946e3a58a821f8204043

2018961981 as geometric shapes

Circle

Radius = n
Diameter 4037923962
Circumference 12685512254.773
Area 1.2805783475949E+19

Sphere

Radius = n
Volume 3.4472519966477E+28
Surface area 5.1223133903794E+19
Circumference 12685512254.773

Square

Length = n
Perimeter 8075847924
Area 4076207480723444361
Diagonal 2855243415.4459

Cube

Length = n
Surface area 2.4457244884341E+19
Volume 8.2297079302484E+27
Space diagonal 3496944729.6419

Equilateral Triangle

Length = n
Perimeter 6056885943
Area 1.7650496147013E+18
Altitude 1748472364.821

Triangular Pyramid

Length = n
Surface area 1.7650496147013E+18
Volume 9.6988038077723E+26
Height 951747805.14862