388910985 (number)

388910985 is an odd 9-digits composite number following 388910984 and preceding 388910986. In scientific notation, it is written as 3.88910985 × 10^8. The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors. There are 207419184 positive integers (up to 388910985) that are relatively prime to 388910985.

Interesting facts

Basic properties

Name

Name three hundred eighty-eight million nine hundred ten thousand nine hundred eighty-five

Notation

Scientific notation 3.88910985 × 10^8
Engineering notation 3.88910985 × 10^6

Prime Factorization of 388910985

Prime Factorization 3 × 5 × 25927399

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 388910985
Product of the distinct prime numbers

The prime factorization of 388910985 is 3 × 5 × 25927399. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 2, 37, 96, 509, 928, 8398, 9689, 98446, 7173, 869065, 954145, 7823324, 1716117, 59911969, 43692437, 8937984, 693406441, 3816859391, 9549405422

Basic calculations (n = 388910985)

Multiplication

n×y
n×2 777821970
n×3 1166732955
n×4 1555643940
n×5 1944554925

Division

n÷y
n÷2 194455492.5
n÷3 129636995
n÷3 97227746.25
n÷5 77782197

Exponentiation

ny
n2 151251754253670225
n3 5.8823468729773E+25
n4 2.2877093164813E+34
n5 8.8971528366641E+42

Nth Root

y√n
2√n 19720.826174377
3√n 729.93368072067
4√n 140.43085905305
5√n 52.236015496042

Divisors of 388910985

1, 3, 5, 15, 25927399, 77782197, 129636995, 388910985

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -388910984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 388910985 can be divided by 8 positive divisors. The sum of these divisors (counting 388910985) is 1, the average is 0.125.

Base conversion 388910985

Base System Value
2 Binary 10111001011100100111110001001
3 Ternary 1000002210201120120
4 Quaternary 113023210332021
5 Quinary 1244030122420
6 Senary 102331413453
8 Octal 2713447611
10 Decimal 388910985
12 Duodecimal aa2b4289
16 Hexadecimal 172e4f89
20 Vigesimal 61adh95
36 Base36 6fjpmx

Cryptographic Hash Functions

md5 aa0ac3474910e33974efda5a4be85ecd
sha1 bbaa945007c70b0d739f81a248e0f8568d556af0
sha256 d6be949bc845cbf13da8eefa6b047f3fdb3ee2ec7699d4a892d548d617c9626d
sha512 26a22860297f962a9c45a643a7b03ac4162a0b8490326c262023bfbcfb37ea05b9e8999f9fcae3eac09a00e8c4e1efc2e581b688e5e2509324e2f5fc59de5216
ripemd-160 86b31a190a4a9f703c4d1a277edbd5022e4934f8

388910985 as geometric shapes

Circle

Radius = n
Diameter 777821970
Circumference 2443599786.7527
Area 4.751714000059E+17

Sphere

Radius = n
Volume 2.4639916962683E+26
Surface area 1.9006856000236E+18
Circumference 2443599786.7527

Square

Length = n
Perimeter 1555643940
Area 151251754253670225
Diagonal 550003189.54288

Cube

Length = n
Surface area 907510525522021350
Volume 5.8823468729773E+25
Space diagonal 673613585.64166

Equilateral Triangle

Length = n
Perimeter 1166732955
Area 6.549393077532E+16
Altitude 336806792.82083

Triangular Pyramid

Length = n
Surface area 6.549393077532E+16
Volume 6.9324122719562E+24
Height 183334396.51429