Properties of the Number 70840

Seventy Thousand Eight Hundred Forty

Basics

Value: 70839 → 70840 → 70841

Parity: even

Prime: No

Previous Prime: 70823

Next Prime: 70841

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 5 × 7 × 11 × 23

Divisors: 1, 2, 4, 5, 7, 8, 10, 11, 14, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001010010111000

Octal: 212270

Duodecimal: 34BB4

Hexadecimal: 114b8

Square: 5018305600

Square Root: 266.15784790233033

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

Numbers that have 11 terms in their Zeckendorf representation. A179251

From generalized Catalan numbers. A6631

Triangle read by rows: T(n,k) is the number of noncrossing trees with root degree equal to k. A92276

Coefficient of x⁴ in (1-x-x²)^-n. A6504

Triangle read by rows of numbers of paths in a lattice satisfying certain conditions. A71948

G.f.: ∏_m>=1 1/(1-x^m)³². A82557

a(n) = n*(n+1)*(n+2)*(n+3)/3. A162668

Number of different words that can be formed from an n X n grid of letters, reading horizontally, vertically or diagonally. A34720

Composite numbers m such that ∑_i=1..k (p_i/(p_i+1)) + ∏_i=1..k (p_i/(p_i-1)) is an integer, where p_i are the k prime factors of m (with multiplicity). A230110

Number of dissections of a convex (3n+3)-sided polygon into n pentagons and one triangle (up to equivalence). A185113