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Properties of the Number -3999999

Nine Hundred Ninety-Nine Thousand Nine Hundred Ninety-Nine

Basics

Value: -4000000 → -3999999 → -3999998

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 57

Digital Root: 3

Palindrome: No

Factorization: 3 × 23 × 29 × 1999

Divisors: 1, 3, 23, 29, 69, 87, 667, 1999, 2001, 5997

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -1111010000100011111111

Octal: -17204377

Duodecimal: -140A993

Hexadecimal: -3d08ff

Square: 15999992000001

Square Root: 1999.9997499999845

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

Minimum number k for which the digital sum of k·n is 3·n. A147823
Numbers with digits nondecreasing and their reciprocals sum to 1/(positive integer). A45910
a(n) is the smallest composite number with the sum of digits = the n-th composite number. A73866
Smallest number whose sum of digits is 2n+1. A131668
The smallest composite number larger than the n-th composite number, which has a sum of digits equal to the n-th composite number. A161551
a(n) = 4·10n - 1. A198970
Smallest number whose sum of digits is 3n. A133195
A number N is called a "rebel" number if there do not exist two integers a and b such that N = a + b with a > b > 0 and S(a) = S(b) where S(n) is the sum of the digits of the number n. A292514
Harmonic mean of digits is 7. A61546
Numbers with digits in nondecreasing order such that sum of the reciprocals of the digits is 1. A91783