Properties of the Number -158730

One Hundred Fifty-Eight Thousand Seven Hundred Thirty

Basics

Value: -158731 → -158730 → -158729

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 11 × 13 × 37

Divisors: 1, 2, 3, 5, 6, 10, 11, 13, 15, 22

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100110110000001010

Octal: -466012

Duodecimal: -77A36

Hexadecimal: -26c0a

Square: 25195212900

Square Root: 398.40933723997983

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

a(n) = the smallest number k such that k·n is a number with a string of 1's followed by a string of 0's. A276348

Smallest s for which there are exactly n primitive Pythagorean triangles with perimeter 2s; i.e., smallest s such that A078926(s) = n. A78927

a(n) = floor( (10ⁿ - 1) / (9·n) ). A89303

Primitive congruent numbers that are the squarefree part of the area of primitive Pythagorean triangles (PPTs) ordered within a Berggren ternary tree of PPTs. A393290

Average θ series of odd unimodular lattices of dimension 11 (multiplied by 31). A29813

Integers of the form (rep(n)-1)/n where rep(n)=1111111111...111 with n 1's is the n-th repunit number. A67944

Multiples of 5291. A178027

a(n) = binomial(n,2)*(2^n-2 - n). A342483