Properties of the Number -1553

Five Hundred Fifty-Three

Basics

Value: -1554 → -1553 → -1552

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 1553

Divisors: 1, 1553

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -11000010001

Octal: -3021

Duodecimal: -A95

Hexadecimal: -611

Square: 2411809

Square Root: 39.408120990476064

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

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 331", based on the 5-celled von Neumann neighborhood. A271280

Primes of the form 2x² + 2xy + 17y². A139827

a(n) is the number of subsets of {1,...,n} containing no solutions to x+y=z with·and y distinct (one version of "sum-free subsets"). A85489

Odd numbers k such that (10^k - 1)/3 - 2·10^floor(k/2) is a palindromic wing prime (a.k.a. near-repdigit palindromic prime) of the form 3...313...3. A77775

Numbers which are the sum of 3 nonzero 4th powers. A3337

Primes that are the sum of three consecutive primes. A34962

Number of n-node steric rooted ternary trees; number of n carbon alkyl radicals C(n)H(2n+1) taking stereoisomers into account. A625

Primes whose base-9 representation is also the base-6 representation of a prime. A235639

Numbers n such that 97 is the largest prime factor of n² - 1. A181470

Primes p such that 4p² + 1 is also prime. A52291