Properties of the Number -139861

One Hundred Thirty-Nine Thousand Eight Hundred Sixty-One

Basics

Value: -139862 → -139861 → -139860

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 139861

Divisors: 1, 139861

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100010001001010101

Octal: -421125

Duodecimal: -68B31

Hexadecimal: -22255

Square: 19561099321

Square Root: 373.9799459864125

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

Primes which yield a prime whenever a 1 is inserted anywhere in them (including at the beginning or end). A69246

Number of intersection points of all lines through pairs of vertices of a regular n-gon. A146212

Triangle read by rows: T(n,k) = 140·k³*(n-k)³ - 14·k*(n-k) + 1; n >= 0, 0 <= k <= n. A300785

Determinant of M(n), the n X n matrix defined by m(i,i) = 1, m(i,j) = i-j. A79034

Primes arising in A083989. A83990

Number of vertices in graph G_n formed by taking a regular n-gon with all its chords extended to infinity (the n-th graph in A344857) and inverting it in its circumscribing circle. A383461

A146212(2·n). A347321