Properties of the Number 2841

Two Thousand Eight Hundred Forty-One

Basics

Value: 2840 → 2841 → 2842

Parity: odd

Prime: No

Previous Prime: 2837

Next Prime: 2843

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 947

Divisors: 1, 3, 947, 2841

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101100011001

Octal: 5431

Duodecimal: 1789

Hexadecimal: b19

Square: 8071281

Square Root: 53.301031884945715

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 k such that 10^k + 9 is prime. A88275

Number of disconnected 2-regular graphs on n vertices. A165652

Numbers k such that 2^k - 9 is prime. A59610

G.f.: 1/(1-2x-15x²)^1/2; also, a(n) is the central coefficient of (1+x+4x²)ⁿ. A84605

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nXk array. A220153

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero. A301884

Number of integer partitions of n whose number of submultisets is less than n. A325833

Number of integer partitions of n with reverse-alternating sum equal to the reverse-alternating sum of their conjugate. A345196

Smallest positive number that can be written as sum of distinct Fibonacci numbers in n ways. A13583

Indices of prime Bell numbers A000110. A51130