λ
Sequence Observatory

915,675

3 × 52 × 29 × 421
Deficient Odd Composite

Starting at 915,675, the Collatz iteration reaches 1 after 113 steps. The first transition is 2747026; the starting value is odd with 24 positive divisors.

Prime Factor Structure

Factorization String 3 × 5^2 × 29 × 421
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 1,569,840
Proper Divisor Sum 654,165
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #915659 ← → #915683

Radix Representation

Decimal 915675
Binary 11011111100011011011 (20 bits)
Octal 0o3374333
Hexadecimal 0xDF8DB

Divisor Catalog (24)

1 3 5 15 25 29 75 87 145 421 435 725 1,263 2,105 2,175 6,315 10,525 12,209 31,575 36,627 61,045 183,135 305,225 915,675

Collatz Trajectory (113 steps to reach 1)

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

915,675 2,747,026 1,373,513 4,120,540 2,060,270 1,030,135 3,090,406 1,545,203 4,635,610 2,317,805 6,953,416 3,476,708 1,738,354 869,177 2,607,532 1,303,766 651,883 1,955,650 977,825 2,933,476 1,466,738 733,369 2,200,108 1,100,054 550,027 1,650,082 825,041 2,475,124 1,237,562 618,781 1,856,344 928,172 464,086 232,043 696,130 348,065 1,044,196 522,098 261,049 783,148 391,574 195,787 587,362 293,681 881,044 440,522 220,261 660,784 330,392 165,196 82,598 41,299 123,898 61,949 185,848 92,924 46,462 23,231 69,694 34,847

More profiles

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