Properties of the Number 21035

Twenty-One Thousand Thirty-Five

Basics

Value: 21034 → 21035 → 21036

Parity: odd

Prime: No

Previous Prime: 21031

Next Prime: 21059

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 5 × 7 × 601

Divisors: 1, 5, 7, 35, 601, 3005, 4207, 21035

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101001000101011

Octal: 51053

Duodecimal: 1020B

Hexadecimal: 522b

Square: 442471225

Square Root: 145.03447865938637

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) = n*(n+1)*(3·n²+n-1)/6. A103220

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nXk array. A219883

Second elementary symmetric function of the first n terms of (1,1,2,2,3,3,4,4,...). A203246

Character of extremal vertex operator algebra of rank 14. A28523

Fifth column of A046741. A62125

a(n) = 841·n² + 2·n. A158403

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 29. A31707

Numbers k such that 65·2^k+1 is prime. A32382

a(n+1) is the integer part of sqrt(2·a(n)²). A102822

a(n) is the smallest number k such that d(1)*1! + d(2)*2! + ... + d(p)*p! = n², where d(i) are the decimal digits of k. A198095