Properties of the Number 79042

Seventy-Nine Thousand Forty-Two

Basics

Value: 79041 → 79042 → 79043

Parity: even

Prime: No

Previous Prime: 79039

Next Prime: 79043

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 39521

Divisors: 1, 2, 39521, 79042

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010011000010

Octal: 232302

Duodecimal: 398AA

Hexadecimal: 134c2

Square: 6247637764

Square Root: 281.1440911703463

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

Irregular triangle read by rows: T(n,k) is the number of inequivalent connected induced k-vertex subgraphs of the hypercube graph of dimension n >= 0, 1 <= k <= 2ⁿ. A369605

Generalized class numbers c_n,2. A362

Generalized Euler number c(10,n). A64071

a(n) = ∑_i=0..n T(i,n-i), array T as in A049735. A49736

The numbers n in s=n² + (n+1)² that satisfy the requirement for two consecutive squares c,d with c<d with d-c being the sum of two consecutive squares that c<s<d will give s-c and d-s both being squares. A192743

T(n,k) = 1/16 the number of (n+1) X (k+1) 0..3 arrays with all 2 X 2 subblocks having the same four values. A184039

Numbers n in which the first k digits of n form an integer divisible by k², for k = 1, 2, ..., m, where m is the number of digits in n. A79042