Properties of the Number 84129

Eighty-Four Thousand One Hundred Twenty-Nine

Basics

Value: 84128 → 84129 → 84130

Parity: odd

Prime: No

Previous Prime: 84127

Next Prime: 84131

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 29 × 967

Divisors: 1, 3, 29, 87, 967, 2901, 28043, 84129

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10100100010100001

Octal: 244241

Duodecimal: 40829

Hexadecimal: 148a1

Square: 7077688641

Square Root: 290.0499956903982

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

a(n) is the smallest value of m such that A002378(m), the m-th oblong number, contains exactly n 7's. A48543

a(n) = concatenation of n² and n. A55436

a(n) = 100·n² + n. A55438

The point to which the powers of n merge on an 8-digit calculator. A216070

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 20. A31698

a(n) = 841·n² + 29. A158665

a(0) = 1; thereafter, a(n) = ∑_k=0..n-1 ceiling(n/a(k)). A138813

Continued fraction expansion of 4*∏_k>=0 (1 - 1/(2^k+1)). A84129