Properties of the Number 74816

Seventy-Four Thousand Eight Hundred Sixteen

Basics

Value: 74815 → 74816 → 74817

Parity: even

Prime: No

Previous Prime: 74797

Next Prime: 74821

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ⁶ × 7 × 167

Divisors: 1, 2, 4, 7, 8, 14, 16, 28, 32, 56

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10010010001000000

Octal: 222100

Duodecimal: 37368

Hexadecimal: 12440

Square: 5597433856

Square Root: 273.52513595646013

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

Recurrence a(n) = a(n-2) + n^M for M=4, starting with a(0)=0, a(1)=1. A231303

Draw a regular n-gon and the enclosing circle, then for each pair of vertices X, Y, draw a circle with diameter XY; the union of these figures is the graph H_n; sequence gives number of regions in H_n. A370978

"DHK" (bracelet, identity, unlabeled) transform of 1,0,1,0,... (odd). A32243

Number of (n+1) X (2+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). A234876

Partial sums of 4th powers of the even numbers. A330151

a(n) = 3^A001221(n) = 3^ω(n). A74816

T(n,k) is the number of (n+1) X (k+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). A234882