Properties of the Number 3979

Three Thousand Nine Hundred Seventy-Nine

Basics

Value: 3978 → 3979 → 3980

Parity: odd

Prime: No

Previous Prime: 3967

Next Prime: 3989

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 23 × 173

Divisors: 1, 23, 173, 3979

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 111110001011

Octal: 7613

Duodecimal: 2377

Hexadecimal: f8b

Square: 15832441

Square Root: 63.079315151640635

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

Number of non-isomorphic intersecting set-systems of weight n. A306006

Triangle read by rows, T(n,k) = T(n-1,k) + T(n-2,k) + T(n-1,k-1) + T(n-2,k-1) and T(0,0) = 1. A63967

MM-numbers of nesting multiset partitions. A326256

MM-numbers of capturing multiset partitions. A326255

Number of centered trees with n nodes. A676

Number of square plane partitions of n. A89299

a(n) = ∑_k=1..n (lcm(n,n-1,...,n-k+2,n-k+1)/lcm(1,2,...,k)). A93431

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero. A301999

Numbers n such that digits of n are not present in n⁴. A111116

Prefixing, suffixing or inserting a 9 in the number anywhere gives a prime. A69833