Properties of the Number 480

Four Hundred Eighty

Basics

Value: 479 → 480 → 481

Parity: even

Prime: No

Previous Prime: 479

Next Prime: 487

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ⁵ × 3 × 5

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100000

Octal: 740

Duodecimal: 340

Hexadecimal: 1e0

Square: 230400

Square Root: 21.908902300206645

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

Least integer of each prime signature A124832; also products of primorial numbers A002110. A25487

Numbers all of whose prime divisors are consecutive primes starting at 2. A55932

Number of ways of writing n as a sum of 4 squares; also θ series of four-dimensional cubic lattice Z⁴. A118

Refactorable numbers: number of divisors of k divides k. Also known as τ numbers. A33950

4 times triangular numbers: a(n) = 2·n*(n+1). A46092

Numbers that are the sum of 2 successive primes. A1043

a(n) = smallest integer with factorization as Product p(i)^e(i) such that Product p(e(i)) = n. A181821

a(n) = n·d(n), where d(n) = number of divisors of n (A000005). A38040

Coefficients in expansion of Eisenstein series E₂ (also called E₁ or G₂). A6352

a(0) = 1; for n > 0, a(n) = (prime(n)-1)*a(n-1). A5867