138956987 (number)

138956987 is an odd 9-digits composite number following 138956986 and preceding 138956988. In scientific notation, it is written as 1.38956987 × 10^8. The sum of its digits is 56. It has a total of 2 prime factors and 4 positive divisors. There are 128267976 positive integers (up to 138956987) that are relatively prime to 138956987.

Interesting facts

Basic properties

Name

Name one hundred thirty-eight million nine hundred fifty-six thousand nine hundred eighty-seven

Notation

Scientific notation 1.38956987 × 10^8
Engineering notation 1.38956987 × 10^6

Prime Factorization of 138956987

Prime Factorization 13 × 10688999

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 138956987
Product of the distinct prime numbers

The prime factorization of 138956987 is 13 × 10688999. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 10, 35, 53, 673, 257, 4691, 3761, 50699, 53847, 913961, 177434, 2703870, 1239960, 11304264, 45434728, 814281176, 10325427, 1743107849, 2229242397

Basic calculations (n = 138956987)

Multiplication

n×y
n×2 277913974
n×3 416870961
n×4 555827948
n×5 694784935

Division

n÷y
n÷2 69478493.5
n÷3 46318995.666667
n÷3 34739246.75
n÷5 27791397.4

Exponentiation

ny
n2 19309044236118169
n3 2.6831266089007E+24
n4 3.7283918931237E+32
n5 5.1808610382369E+40

Nth Root

y√n
2√n 11788.001823889
3√n 517.95670916223
4√n 108.57256478452
5√n 42.518318195436

Divisors of 138956987

1, 13, 10688999, 138956987

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 -138956986
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 138956987 can be divided by 4 positive divisors. The sum of these divisors (counting 138956987) is 1, the average is 0.25.

Base conversion 138956987

Base System Value
2 Binary 1000010010000101000010111011
3 Ternary 100200110202011002
4 Quaternary 20102011002323
5 Quinary 241033110422
6 Senary 21442155215
8 Octal 1022050273
10 Decimal 138956987
12 Duodecimal 3a652b0b
16 Hexadecimal 84850bb
20 Vigesimal 2389c97
36 Base36 2aqbwb

Cryptographic Hash Functions

md5 7dcdd83869d81a97335749644ec8db2a
sha1 43c652e3a063dc3e68ca50e98ea5e15c0f936a4d
sha256 cf3f339652dde56559d5920525032b30c70190484ab885739d8b8755028780a9
sha512 8c7ee5f503a075fb32273be9114dea6f0645abc9c43d39b0e74cf1a88ae7794a03a38cf79be4664a17f1fa462b06dbc25b7e57a27d2756bd059bfd7e75c192a8
ripemd-160 3ebe45263aa6812e2eaccabf927a955a20ed8288

138956987 as geometric shapes

Circle

Radius = n
Diameter 277913974
Circumference 873092499.04834
Area 6.0661151520029E+16

Sphere

Radius = n
Volume 1.1239054457565E+25
Surface area 2.4264460608012E+17
Circumference 873092499.04834

Square

Length = n
Perimeter 555827948
Area 19309044236118169
Diagonal 196514855.6019

Cube

Length = n
Surface area 115854265416709014
Volume 2.6831266089007E+24
Space diagonal 240680561.55069

Equilateral Triangle

Length = n
Perimeter 416870961
Area 8.3610614156379E+15
Altitude 120340280.77534

Triangular Pyramid

Length = n
Surface area 8.3610614156379E+15
Volume 3.1620950332262E+23
Height 65504951.867301