λ
Prime Ledger

1,309,999

1309999
Deficient Odd Prime

1,309,999 has the prime decomposition 1309999. Its 1 distinct prime factor produce 2 positive divisors.

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Prime Factor Structure

Factorization String 1309999
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 1,310,000
Proper Divisor Sum 1
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #1309963 ← → #1310033

Radix Representation

Decimal 1309999
Binary 100111111110100101111 (21 bits)
Octal 0o4776457
Hexadecimal 0x13FD2F

Divisor Catalog (2)

Collatz Trajectory (155 steps to reach 1)

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

Showing the first 5 trajectory entries; the stopping-time total above is unchanged.

1,309,999 3,929,998 1,964,999 5,894,998 2,947,499

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