Properties of the Number -1481

Four Hundred Eighty-One

Basics

Value: -1482 → -1481 → -1480

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 1481

Divisors: 1, 1481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: -10111001001

Octal: -2711

Duodecimal: -A35

Hexadecimal: -5c9

Square: 2193361

Square Root: 38.48376280978771

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

Row sums of a number triangle related to the Pell numbers. A110331

Numerators of sequence {b(1), b(2), ...} which when COMPOSED with itself gives {1,2,3,...}. A30274

Triangle of numerators of dual coefficients of Faulhaber. A201453

Values of n such that L(7) and N(7) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A226927

Values of n such that L(17) and N(17) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227520

a(n) = a(n-2) - 2·a(n-3) + a(n-4) for n>3, a(0)=0, a(1)=2, a(2)=-1, a(3)=3. A286390

Numerators of inverse of triangle A082985(n). A230069

Lesser of twin primes. A1359

Sophie Germain primes p: 2p+1 is also prime. A5384

Number of partitions of n into relatively prime parts. Also aperiodic partitions. A837