2,809,490

2 × 5 × 280949

Starting at 2,809,490, the Collatz iteration reaches 1 after 130 steps. The first transition is 1404745; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 5 × 280949

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 5,057,100

Proper Divisor Sum 2,247,610

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #2809489 ← → #2809493

Radix Representation

Decimal	2809490
Binary	1010101101111010010010 (22 bits)
Octal	0o12557222
Hexadecimal	0x2ADE92

Divisor Catalog (8)

1 2 5 10 280,949 561,898 1,404,745 2,809,490

Collatz Trajectory (130 steps to reach 1)

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

2,809,490 1,404,745 4,214,236 2,107,118 1,053,559 3,160,678 1,580,339 4,741,018 2,370,509 7,111,528 3,555,764 1,777,882 888,941 2,666,824 1,333,412 666,706 333,353 1,000,060 500,030 250,015 750,046 375,023 1,125,070 562,535 1,687,606 843,803 2,531,410 1,265,705 3,797,116 1,898,558 949,279 2,847,838 1,423,919 4,271,758 2,135,879 6,407,638 3,203,819 9,611,458 4,805,729 14,417,188 7,208,594 3,604,297 10,812,892 5,406,446 2,703,223 8,109,670 4,054,835 12,164,506 6,082,253 18,246,760 9,123,380 4,561,690 2,280,845 6,842,536 3,421,268 1,710,634 855,317 2,565,952 1,282,976 641,488

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