Properties of the Number 355

Three Hundred Fifty-Five

Basics

Value: 354 → 355 → 356

Parity: odd

Prime: No

Previous Prime: 353

Next Prime: 359

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 5 × 71

Divisors: 1, 5, 71, 355

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101100011

Octal: 543

Duodecimal: 257

Hexadecimal: 163

Square: 126025

Square Root: 18.841443681416774

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

Tribonacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) with a(0)=a(1)=a(2)=1. A213

Binary irreducible polynomials (primes in the ring GF(2)[X]), evaluated at X=2. A14580

Numbers whose digits are primes. A46034

a(n) = ceiling((∑_k=1..n-1 a(k)) / 2) for n >= 2 starting with a(1) = 1. A73941

Number of partitions of n in which no parts are multiples of 3. A726

Smith (or joke) numbers: composite numbers k such that sum of digits of k = sum of digits of prime factors of k (counted with multiplicity). A6753

Number of different quasi-orders (or topologies, or transitive digraphs) with n labeled elements. A798

Number of n-node unrooted quartic trees; number of n-carbon alkanes C(n)H(2n+2) ignoring stereoisomers. A602

a(n) = 10·n + 5. A17329

Numbers whose binary expansion is a decimal prime. A36952