1285387989 (number)

1285387989 is an odd 10-digits composite number following 1285387988 and preceding 1285387990. In scientific notation, it is written as 1.285387989 × 10^9. The sum of its digits is 60. It has a total of 2 prime factors and 4 positive divisors. There are 856925324 positive integers (up to 1285387989) that are relatively prime to 1285387989.

Interesting facts

Basic properties

Name

Name one billion two hundred eighty-five million three hundred eighty-seven thousand nine hundred eighty-nine

Notation

Scientific notation 1.285387989 × 10^9
Engineering notation 1.285387989 × 10^9

Prime Factorization of 1285387989

Prime Factorization 3 × 428462663

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1285387989
Product of the distinct prime numbers

The prime factorization of 1285387989 is 3 × 428462663. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 2, 99, 100, 954, 865, 2493, 7496, 40183, 70353, 23184, 700032, 150338, 4896874, 38933767, 21614968, 915721205, 382396341, 5151565778, 5966203623

Basic calculations (n = 1285387989)

Multiplication

n×y
n×2 2570775978
n×3 3856163967
n×4 5141551956
n×5 6426939945

Division

n÷y
n÷2 642693994.5
n÷3 428462663
n÷3 321346997.25
n÷5 257077597.8

Exponentiation

ny
n2 1652222282265464121
n3 2.1237466767822E+27
n4 2.7298384700145E+36
n5 3.5089015812668E+45

Nth Root

y√n
2√n 35852.30800102
3√n 1087.2883777941
4√n 189.34705701706
5√n 66.344793624151

Divisors of 1285387989

1, 3, 428462663, 1285387989

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 -1285387988
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 1285387989 can be divided by 4 positive divisors. The sum of these divisors (counting 1285387989) is 1, the average is 0.25.

Base conversion 1285387989

Base System Value
2 Binary 1001100100111010111011011010101
3 Ternary 10022120200110211120
4 Quaternary 1030213113123111
5 Quinary 10113024403424
6 Senary 331314154153
8 Octal 11447273325
10 Decimal 1285387989
12 Duodecimal 2ba582959
16 Hexadecimal 4c9d76d5
20 Vigesimal 101dd9j9
36 Base36 l9abpx

Cryptographic Hash Functions

md5 e959e02d17bf0252a4f3ca240d55031a
sha1 40a68710d6871bb323f8d491a72b9d38aaac0dc7
sha256 8f1c660936a0205054dee8f05fe1a807581fa2f63dc439cebfb069757d34b2b4
sha512 811b248c9090a865ff8df4217fd0356f5fb380656865cb95cfaf476a327242a779b8f99e742656e6ab4110a38594e6b294dadab3458d5fb88aaab0035329f5ae
ripemd-160 8100924c1bfc5dd7897281263df547daa2a9ca5a

1285387989 as geometric shapes

Circle

Radius = n
Diameter 2570775978
Circumference 8076330926.5099
Area 5.1906093840625E+18

Sphere

Radius = n
Volume 8.8959292771529E+27
Surface area 2.076243753625E+19
Circumference 8076330926.5099

Square

Length = n
Perimeter 5141551956
Area 1652222282265464121
Diagonal 1817813126.9553

Cube

Length = n
Surface area 9.9133336935928E+18
Volume 2.1237466767822E+27
Space diagonal 2226357304.3868

Equilateral Triangle

Length = n
Perimeter 3856163967
Area 7.154332345703E+17
Altitude 1113178652.1934

Triangular Pyramid

Length = n
Surface area 7.154332345703E+17
Volume 2.5028594611251E+26
Height 605937708.98509