λ
Harmonic Matrix

808,987

431 × 1877
Deficient Odd Composite

808,987 has digital root 4. The neighboring primes are 808981 and 808991; its proper-divisor sum differs from the starting integer by -806,678.

Prime Factor Structure

Factorization String 431 × 1877
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 811,296
Proper Divisor Sum 2,309
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #808981 ← → #808991

Radix Representation

Decimal 808987
Binary 11000101100000011011 (20 bits)
Octal 0o3054033
Hexadecimal 0xC581B

Divisor Catalog (4)

1 431 1,877 808,987

Collatz Trajectory (206 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

808,987 2,426,962 1,213,481 3,640,444 1,820,222 910,111 2,730,334 1,365,167 4,095,502 2,047,751 6,143,254 3,071,627 9,214,882 4,607,441 13,822,324 6,911,162 3,455,581 10,366,744 5,183,372 2,591,686 1,295,843 3,887,530 1,943,765 5,831,296 2,915,648 1,457,824 728,912 364,456 182,228 91,114 45,557 136,672 68,336 34,168 17,084 8,542 4,271 12,814 6,407 19,222 9,611 28,834 14,417 43,252 21,626 10,813 32,440 16,220 8,110 4,055 12,166 6,083 18,250 9,125 27,376 13,688 6,844 3,422 1,711 5,134

More profiles

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