Properties of the Number 17680

Seventeen Thousand Six Hundred Eighty

Basics

Value: 17679 → 17680 → 17681

Parity: even

Prime: No

Previous Prime: 17669

Next Prime: 17681

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁴ × 5 × 13 × 17

Divisors: 1, 2, 4, 5, 8, 10, 13, 16, 17, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100010100010000

Octal: 42420

Duodecimal: A294

Hexadecimal: 4510

Square: 312582400

Square Root: 132.9661611087573

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 whose square can be represented in exactly two ways as the sum of a positive square and a positive fourth power. A345700

Product of prime(n+1)-1 and prime(n)-1. A83553

LCM of terms in Collatz (3x+1) function initiated at n. A87226

Rectangular array read by downward antidiagonals; row n consists of the numbers m such that n is the denominator of d(k)/d(1) + d(k-1)/d(2) + ... + d(k)/d(1), where d(1),d(2),...,d(k) are the unitary divisors of m. A305995

Number of partitions of 2·n into parts with multiplicity <= n. A232623

a(n) = n*(n²+4). A155965

Triangle T(n,k), 1<=k<=n: column k are the coefficients of the INVERT transform of ∑_i=1..k i·xⁱ. A380886

Number of ways to place eight distinct positive integers on a square, four on the corners and four on the sides such that the sum of the three values on each side is n. A380962

Number of points on surface of 4-dimensional cube. A8511

Difference between n-th prime squared and n-th perfect square. A106588