Properties of the Number 80161

Eighty Thousand One Hundred Sixty-One

Basics

Value: 80160 → 80161 → 80162

Parity: odd

Prime: No

Previous Prime: 80153

Next Prime: 80167

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 19 × 4219

Divisors: 1, 19, 4219, 80161

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011100100100001

Octal: 234441

Duodecimal: 3A481

Hexadecimal: 13921

Square: 6425785921

Square Root: 283.12717990330776

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

a(n) = ∑_k=0..n binomial(n,2·k)*binomial(2·k,k)/(2·k-1). A295112

Indices of primes in sequence defined by A(0) = 33, A(n) = 10·A(n-1) + 43 for n > 0. A56255

Number of arrangements of 4 nonzero numbers x(i) in -n..n with the sum of div(x(i),x(i+1)), where div(a,b)=a/b produces the integer quotient implying a nonnegative remainder, equal to zero. A190073

Triangle T(n,k), n >= 0, 0 <= k <= n, read by rows, where T(n,k) = (n-k)*T(n-1,k-1) + 2*(k+1)*T(n-1,k) + A102365(n,k) with T(n,k) = 0 if k < 0 or k > n. A382629

Numbers k that divide 10^k + 9^k. A45609

Indices of Wonderful Demlo numbers A002477 whose digit sums are squares. A80161