Properties of the Number 84042

Eighty-Four Thousand Forty-Two

Basics

Value: 84041 → 84042 → 84043

Parity: even

Prime: No

Previous Prime: 84017

Next Prime: 84047

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 7 × 23 × 29

Divisors: 1, 2, 3, 6, 7, 9, 14, 18, 21, 23

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100100001001010

Octal: 244112

Duodecimal: 40776

Hexadecimal: 1484a

Square: 7063057764

Square Root: 289.8999827526728

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

T(n,k) = 1/k! * ∑_i=0..k (-1)^k-i *C(k,i) * A258219(n,i); triangle T(n,k), n>=0, 0<=k<=n, read by rows. A258220

First differences of A000043. A134458

A generalized partition function. A2602

a(n) = 100·n² - 2·n. A158129

Smallest multiple of n in which the digit string of n appears sandwiched between at least a pair of digits. A84042