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Properties of the Number 47880

Forty-Seven Thousand Eight Hundred Eighty

Basics

Value: 47879 → 47880 → 47881

Parity: even

Prime: No

Previous Prime: 47869

Next Prime: 47881

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 3 × 3 2 × 5 × 7 × 19

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011101100001000

Octal: 135410

Duodecimal: 23860

Hexadecimal: bb08

Square: 2292494400

Square Root: 218.81499034572562

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

4-dimensional analog of centered polygonal numbers: a(n) = n(n+1)*(n2+n+4)/12. A6007
Triangle read by rows, the Bell transform of (n+2)!/2 without column 0. A46089
Number of walks of length n on square lattice, starting at origin, staying on points with x >= 0, y <= x. A60900
Numbers expressible as (a2-1)(b2-1) in at least 2 distinct ways (b>=a>1). A63067
Positive numbers m such that m2 - 1 divides 2m - 1. A247219
Least positive integer k such that prime(k)-k, prime(k)+k, prime(k·n)-k·n, prime(k·n)+k·n, prime(k)+k·n and prime(k·n)+k are all prime. A259492
Common differences in triples of squares in arithmetic progression, that are not a multiples of other triples in (A198384, A198385, A198386). A198438
Numbers n such that {largest m such that 1, 2, ..., m divide n} is different from {largest m such that m! divides n2}. A232099
a(n) = (n + 1)*(n + 2)*(n + 4)*(n + 8)*(n + 15)/120. A6636
Irregular triangle read by rows T(n,k) (n>=1, 0<=k<=n(n-1)/2) giving the total number of connected components in all subgraphs (V,E') with |E'|=k of the complete labeled graph Kn=(V,E). A125205