Properties of the Number 238

Two Hundred Thirty-Eight

Basics

Value: 237 → 238 → 239

Parity: even

Prime: No

Previous Prime: 233

Next Prime: 239

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 7 × 17

Divisors: 1, 2, 7, 14, 17, 34, 119, 238

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101110

Octal: 356

Duodecimal: 17A

Hexadecimal: ee

Square: 56644

Square Root: 15.427248620541512

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

Sum of the first n primes. A7504

a(n) = prime(n) - 1. A6093

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

a(n) = ∑_k=1..n k·floor(n/k); also ∑_k=1..n σ(k) where σ(n) = sum of divisors of n (A000203). A24916

Sphenic numbers: products of 3 distinct primes. A7304

Binary partition function: number of partitions of n into powers of 2. A18819

Number of strict knapsack partitions of n. A275972

Ulam numbers: a(1) = 1; a(2) = 2; for n>2, a(n) = least number > a(n-1) which is a unique sum of two distinct earlier terms. A2858

Number of binary partitions: number of partitions of 2n into powers of 2. A123

Number of nonempty subsets of {1,2,3,...,n} whose elements have an integer average. A51293