78390988 (number)

78390988 is an even 8-digits composite number following 78390987 and preceding 78390989. In scientific notation, it is written as 7.8390988 × 10^7. The sum of its digits is 52. It has a total of 5 prime factors and 18 positive divisors. There are 36180144 positive integers (up to 78390988) that are relatively prime to 78390988.

Interesting facts

Basic properties

Name

Name seventy-eight million three hundred ninety thousand nine hundred eighty-eight

Notation

Scientific notation 7.8390988 × 10^7
Engineering notation 7.8390988 × 10^6

Prime Factorization of 78390988

Prime Factorization 2 × 2 × 13 × 13 × 115963

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 3015038
Product of the distinct prime numbers

The prime factorization of 78390988 is 2 × 2 × 13 × 13 × 115963. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 4, 60, 86, 688, 37, 5703, 4884, 78773, 73953, 328946, 190456, 4248828, 5232713, 18298642, 41918132, 457875825, 950341115, 4871861398, 4230642710

Basic calculations (n = 78390988)

Multiplication

n×y
n×2 156781976
n×3 235172964
n×4 313563952
n×5 391954940

Division

n÷y
n÷2 39195494
n÷3 26130329.333333
n÷3 19597747
n÷5 15678197.6

Exponentiation

ny
n2 6145146999616144
n3 4.8172414470515E+23
n4 3.7762831646891E+31
n5 2.9602656824775E+39

Nth Root

y√n
2√n 8853.8685330199
3√n 427.97859240176
4√n 94.094997385727
5√n 37.918681489917

Divisors of 78390988

1, 2, 4, 13, 26, 52, 169, 338, 676, 115963, 231926, 463852, 1507519, 3015038, 6030076, 19597747, 39195494, 78390988

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -78390987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78390988 can be divided by 18 positive divisors. The sum of these divisors (counting 78390988) is 1, the average is 0.055555555555556.

Base conversion 78390988

Base System Value
2 Binary 100101011000010011011001100
3 Ternary 12110111200012221
4 Quaternary 10223002123030
5 Quinary 130032002423
6 Senary 11440105124
8 Octal 453023314
10 Decimal 78390988
12 Duodecimal 223051a4
16 Hexadecimal 4ac26cc
20 Vigesimal 149ih98
36 Base36 1ao6vg

Cryptographic Hash Functions

md5 ab4d84bbc6c4cc2e16204da694092cb2
sha1 f04be3235545d9bf1d7e1d763e71b99464a161a8
sha256 24f9f2326634b397fdbbbee86aa18cc76e16b8b2073d637865171ae0f23638a6
sha512 7dfb073bbe36853feffef6ef7b34c9d2f18afc84f50e3ee855a1a2c82a750fa99ba22c6daf4d6d614ca53c4d9990d5ae35f230fff51eda3321d910d54e24fb01
ripemd-160 3ebd4137363faeca62c2f79404b926eca0cd3d0c

78390988 as geometric shapes

Circle

Radius = n
Diameter 156781976
Circumference 492545104.01689
Area 1.9305548669223E+16

Sphere

Radius = n
Volume 2.01784137875E+24
Surface area 7.7222194676894E+16
Circumference 492545104.01689

Square

Length = n
Perimeter 313563952
Area 6145146999616144
Diagonal 110861598.39743

Cube

Length = n
Surface area 36870881997696864
Volume 4.8172414470515E+23
Space diagonal 135777174.07152

Equilateral Triangle

Length = n
Perimeter 235172964
Area 2.6609267058287E+15
Altitude 67888587.035761

Triangular Pyramid

Length = n
Surface area 2.6609267058287E+15
Volume 5.677173489705E+22
Height 36953866.132476