Properties of the Number -30457

Thirty Thousand Four Hundred Fifty-Seven

Basics

Value: -30458 → -30457 → -30456

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 7 × 19 × 229

Divisors: 1, 7, 19, 133, 229, 1603, 4351, 30457

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -111011011111001

Octal: -73371

Duodecimal: -15761

Hexadecimal: -76f9

Square: 927628849

Square Root: 174.5193399024876

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

Sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1. A228126

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero. A305015

Total number of brown nodes among tricolored labeled trees on n nodes. A97172

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where A(n,k) is ∑_{j=0..floor(n/2)} ((n-j)!/j!)*binomial(n-j,j)*k^n-2·j*(-1)^j. A305466

Numbers k such that sopf(k) + 1 = sopf(k+1), where sopf(k) = A008472(k). A64111

Numbers that can be represented in more than one way as p²+p·q+q² with p and q primes, p<=q. A349987

Numbers n such that (i) the sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1, and (ii) n and n+1 have the same number of prime divisors (with repetition). A237929

Numbers k such that A008475(k)+1 = A008475(k+1). A333801

Numbers k such that A181894(k)+1 = A181894(k+1). A333802

Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero. A305012