λ
Sequence Observatory

1,015,361

1015361
Deficient Odd Prime

Starting at 1,015,361, the Collatz iteration reaches 1 after 134 steps. The first transition is 3046084; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 1015361
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 1,015,362
Proper Divisor Sum 1
Digit Sum / Digital Root 17 (Root: 8)
Adjacent Primes #1015349 ← → #1015363

Radix Representation

Decimal 1015361
Binary 11110111111001000001 (20 bits)
Octal 0o3677101
Hexadecimal 0xF7E41

Divisor Catalog (2)

Collatz Trajectory (134 steps to reach 1)

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

1,015,361 3,046,084 1,523,042 761,521 2,284,564 1,142,282 571,141 1,713,424 856,712 428,356 214,178 107,089 321,268 160,634 80,317 240,952 120,476 60,238 30,119 90,358 45,179 135,538 67,769 203,308 101,654 50,827 152,482 76,241 228,724 114,362 57,181 171,544 85,772 42,886 21,443 64,330 32,165 96,496 48,248 24,124 12,062 6,031 18,094 9,047 27,142 13,571 40,714 20,357 61,072 30,536 15,268 7,634 3,817 11,452 5,726 2,863 8,590 4,295 12,886 6,443

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