Properties of the Number 68999

Sixty-Eight Thousand Nine Hundred Ninety-Nine

Basics

Value: 68998 → 68999 → 69000

Parity: odd

Prime: No

Previous Prime: 68993

Next Prime: 69001

Digit Sum: 41

Digital Root: 5

Palindrome: No

Factorization: 7 × 9857

Divisors: 1, 7, 9857, 68999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110110000111

Octal: 206607

Duodecimal: 33B1B

Hexadecimal: 10d87

Square: 4760862001

Square Root: 262.6766072569082

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

Harmonic mean of digits is 8. A62185

a(n) = smallest multiple of 7 with a digit sum = n. A77493

Least semiprime whose digital sum is n, or 0 if no such integer exists. A213653

a(n) is the smallest composite number with the sum of digits = the n-th prime number. A73868

a(1)=0, a(n+1) is the smallest nonprime with sum of digits > sum of digits of a(n). A156673

The semiprimes which set new records for the sum of their decimal digits. A257652

The sum of the prime digits of m and the sum of the nonprime digits of m differ by n. A341161

Expansion of 1/((1-3x)(1-5x)(1-6x)(1-11x)). A28057

Smallest composite number with digit sum n. A67524

Numbers k such that k = (sum of distinct prime factors of k)*(product of distinct prime factors of k). A68999