1,961,384

2³ × 245173

Starting at 1,961,384, the Collatz iteration reaches 1 after 153 steps. The first transition is 980692; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2^3 × 245173

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 3,677,610

Proper Divisor Sum 1,716,226

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #1961381 ← → #1961411

Radix Representation

Decimal	1961384
Binary	111011110110110101000 (21 bits)
Octal	0o7366650
Hexadecimal	0x1DEDA8

Divisor Catalog (8)

1 2 4 8 245,173 490,346 980,692 1,961,384

Collatz Trajectory (153 steps to reach 1)

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

1,961,384 980,692 490,346 245,173 735,520 367,760 183,880 91,940 45,970 22,985 68,956 34,478 17,239 51,718 25,859 77,578 38,789 116,368 58,184 29,092 14,546 7,273 21,820 10,910 5,455 16,366 8,183 24,550 12,275 36,826 18,413 55,240 27,620 13,810 6,905 20,716 10,358 5,179 15,538 7,769 23,308 11,654 5,827 17,482 8,741 26,224 13,112 6,556 3,278 1,639 4,918 2,459 7,378 3,689 11,068 5,534 2,767 8,302 4,151 12,454

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