Properties of the Number 164

One Hundred Sixty-Four

Basics

Value: 163 → 164 → 165

Parity: even

Prime: No

Previous Prime: 163

Next Prime: 167

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 41

Divisors: 1, 2, 4, 41, 82, 164

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100100

Octal: 244

Duodecimal: 118

Hexadecimal: a4

Square: 26896

Square Root: 12.806248474865697

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 that are the product of exactly three (not necessarily distinct) primes. A14612

Positive integers which are neither squarefree integers nor prime powers. A126706

Fibbinary numbers: if n = F(i1) + F(i2) + ... + F(ik) is the Zeckendorf representation of n (i.e., write n in Fibonacci number system) then a(n) = 2^{i1 - 2} + 2^{i2 - 2} + ... + 2^{ik - 2}. Also numbers whose binary representation contains no two adjacent 1's. A3714

Numbers that are the sum of 2 nonzero squares. A404

Multiples of 4. A8586

a(n) = 3·n + 2. A16789

a(n) = prime(n) + 1. A8864

Values taken by totient function φ(m) (A000010). A2202

a(0) = 1, thereafter a(n) = 4n. A8574

All primes that divide n are of the form prime(2k-1), where prime(k) is k-th prime. A66208

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