Properties of the Number 3939

Three Thousand Nine Hundred Thirty-Nine

Basics

Value: 3938 → 3939 → 3940

Parity: odd

Prime: No

Previous Prime: 3931

Next Prime: 3943

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 13 × 101

Divisors: 1, 3, 13, 39, 101, 303, 1313, 3939

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 111101100011

Octal: 7543

Duodecimal: 2343

Hexadecimal: f63

Square: 15515721

Square Root: 62.76145313805282

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

Doublets: base-10 representation is the juxtaposition of two identical strings. A20338

Partial sums of A299272. A299273

Number of compositions of n with equal differences up to sign. A325557

L-toothpick sequence (see Comment lines for definition). A172310

Matula-Goebel numbers of semi-lone-child-avoiding rooted identity trees. A331963

Number of strict odd-length integer partitions of n whose parts do not have the same mean as median. A359900

Numbers that have 8 terms in their Zeckendorf representation. A179248

Number of, not necessarily connected, regular simple graphs on n vertices with girth at least 5. A185315

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 0 0 vertically. A207500

Number of distinct values taken by 4th derivative of x^x^...^x (with n x's and parentheses inserted in all possible ways) at x=1. A199205