1,426,420

2² × 5 × 73 × 977

Starting at 1,426,420, the Collatz iteration reaches 1 after 124 steps. The first transition is 713210; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 5 × 73 × 977

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 3,039,624

Proper Divisor Sum 1,613,204

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #1426393 ← → #1426427

Radix Representation

Decimal	1426420
Binary	101011100001111110100 (21 bits)
Octal	0o5341764
Hexadecimal	0x15C3F4

Divisor Catalog (24)

1 2 4 5 10 20 73 146 292 365 730 977 1,460 1,954 3,908 4,885 9,770 19,540 71,321 142,642 285,284 356,605 713,210 1,426,420

Collatz Trajectory (124 steps to reach 1)

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

1,426,420 713,210 356,605 1,069,816 534,908 267,454 133,727 401,182 200,591 601,774 300,887 902,662 451,331 1,353,994 676,997 2,030,992 1,015,496 507,748 253,874 126,937 380,812 190,406 95,203 285,610 142,805 428,416 214,208 107,104 53,552 26,776 13,388 6,694 3,347 10,042 5,021 15,064 7,532 3,766 1,883 5,650 2,825 8,476 4,238 2,119 6,358 3,179 9,538 4,769 14,308 7,154 3,577 10,732 5,366 2,683 8,050 4,025 12,076 6,038 3,019 9,058

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