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Properties of the Number 41264

Forty-One Thousand Two Hundred Sixty-Four

Basics

Value: 41263 → 41264 → 41265

Parity: even

Prime: No

Previous Prime: 41263

Next Prime: 41269

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 4 × 2579

Divisors: 1, 2, 4, 8, 16, 2579, 5158, 10316, 20632, 41264

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010000100110000

Octal: 120460

Duodecimal: 1BA68

Hexadecimal: a130

Square: 1702717696

Square Root: 203.13542280951395

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

Define E(n) = ∑k >= 0 (-1)floor(k/3)*kn/k! for n = 0,1,2,.... Then E(n) is an integral linear combination of E(0), E(1) and E(2). This sequence lists the coefficients of E(2). A143630
Triangle read by rows where T(n,k) is the number of set partitions of {1..n} with exactly k distinct block-sums. A371788
Sum of proper divisors minus the number of proper divisors of the number of partitions of n, A000041(n). A152987
Define E(n) = ∑k >= 0 (-1)floor(k/3)*kn/k! for n = 0,1,2,... . Then E(n) is an integral linear combination of E(0), E(1) and E(2). This sequence lists the coefficients of E(0). A143628
Define E(n) = ∑k>=0 (-1)floor(k/3)*kn/k! for n = 0,1,2,... . Then E(n) is an integral linear combination of E(0), E(1) and E(2). This sequence lists the coefficients of E(1). A143629
Numerators of continued fraction convergents to sqrt(145). A41264
Decimal expansion of the constant E3(0) := ∑n >= 0 (-1)floor(n/3)/n! = 1 + 1/1! + 1/2! - 1/3! - 1/4! - 1/5! + + + - - - ... . A143625
Decimal expansion of the constant E3(1) := ∑k >= 0 (-1)floor(k/3)*k/k! = 1/1! + 2/2! - 3/3! - 4/4! - 5/5! + + + - - - ... . A143626
Decimal expansion of the constant E3(2) := sum {k = 0.. inf} (-1)floor(k/3)*k2/k! = 1/1! + 22/2! - 32/3! - 42/4! - 52/5! + + + - - - ... = 0.68605 60507 ... . A143627