1,863,740

2² × 5 × 93187

Starting at 1,863,740, the Collatz iteration reaches 1 after 140 steps. The first transition is 931870; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 5 × 93187

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 3,913,896

Proper Divisor Sum 2,050,156

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #1863731 ← → #1863769

Radix Representation

Decimal	1863740
Binary	111000111000000111100 (21 bits)
Octal	0o7070074
Hexadecimal	0x1C703C

Divisor Catalog (12)

1 2 4 5 10 20 93,187 186,374 372,748 465,935 931,870 1,863,740

Collatz Trajectory (140 steps to reach 1)

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

1,863,740 931,870 465,935 1,397,806 698,903 2,096,710 1,048,355 3,145,066 1,572,533 4,717,600 2,358,800 1,179,400 589,700 294,850 147,425 442,276 221,138 110,569 331,708 165,854 82,927 248,782 124,391 373,174 186,587 559,762 279,881 839,644 419,822 209,911 629,734 314,867 944,602 472,301 1,416,904 708,452 354,226 177,113 531,340 265,670 132,835 398,506 199,253 597,760 298,880 149,440 74,720 37,360 18,680 9,340 4,670 2,335 7,006 3,503 10,510 5,255 15,766 7,883 23,650 11,825

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