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Properties of the Number -799999

Seven Hundred Ninety-Nine Thousand Nine Hundred Ninety-Nine

Basics

Value: -800000 → -799999 → -799998

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 52

Digital Root: 7

Palindrome: No

Factorization: 799999

Divisors: 1, 799999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7989 Try Today's Challenge

Representations

Binary: -11000011010011111111

Octal: -3032377

Duodecimal: -326B67

Hexadecimal: -c34ff

Square: 639998400001

Square Root: 894.4266319827468

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

Primes that contain digits 7 and 9 only. A20471
Smallest prime with digit sum n, or 0 if no such prime exists. A67180
Near-repdigit primes with 9 as repeated digit. A105975
Primes of the form 2r*5s - 1. A77313
Primes at which sum of digits strictly increases. A61248
The smallest prime with a possible given digit sum. A67523
Smallest prime whose digital sum is equal to the n-th composite number, or 0 if no such prime exists. A73867
Primes consisting of a digit and a nonempty string of 9's (i.e., primes of the form k·10m - 1, where k is any digit). A141311
a(n) is the smallest m such that for any N, at least one of S(N), S(N+1), ..., S(N+m-1) is divisible by n, where S(N) is the sum of digits of N. A331788
a(1) = 2; a(n+1) is obtained by trying to change just one digit of a(n), starting with the least significant digit, until a new prime is reached. Take the lexicographically earliest sequence. Digits may be replaced by any larger digit. A59498