Properties of the Number 84026

Eighty-Four Thousand Twenty-Six

Basics

Value: 84025 → 84026 → 84027

Parity: even

Prime: No

Previous Prime: 84017

Next Prime: 84047

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 42013

Divisors: 1, 2, 42013, 84026

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100100000111010

Octal: 244072

Duodecimal: 40762

Hexadecimal: 1483a

Square: 7060368676

Square Root: 289.8723857148176

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 equal to the sum of their anti-divisors. A73930

Anti-multiply-perfect numbers. Numbers n for which σ*(n)/n is an integer, where σ*(n) is the sum of the anti-divisors of n. A214842

Let σ*_m (n) be result of applying sum of anti-divisors m times to n; call n (m,k)-anti-perfect if σ*_m (n) = k·n; sequence gives the (2,k)-anti-perfect numbers. A229860

Let σ*_m (n) be result of applying sum of anti-divisors m times to n; call n (m,k)-anti-perfect if σ*_m (n) = k·n; sequence gives the (3,k)-anti-perfect numbers. A229861

Let σ*_m (n) be result of applying sum of anti-divisors m times to n; call n (m,k)-anti-perfect if σ*_m (n) = k·n; sequence gives the (4,k)-anti-perfect numbers. A229862

Number of set partitions of [n] such that the maximal absolute difference between consecutive elements within a block equals eight. A294057

The seventh term of the greedy B_n set of natural numbers. A369819

Harmonic anti-divisor numbers. A192272

Diagonal of A084024. A84026