λ
Sequence Observatory

786,974

2 × 393487
Deficient Even Composite

Starting at 786,974, the Collatz iteration reaches 1 after 100 steps. The first transition is 393487; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 393487
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,180,464
Proper Divisor Sum 393,490
Digit Sum / Digital Root 41 (Root: 5)
Adjacent Primes #786971 ← → #786979

Radix Representation

Decimal 786974
Binary 11000000001000011110 (20 bits)
Octal 0o3001036
Hexadecimal 0xC021E

Divisor Catalog (4)

1 2 393,487 786,974

Collatz Trajectory (100 steps to reach 1)

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

786,974 393,487 1,180,462 590,231 1,770,694 885,347 2,656,042 1,328,021 3,984,064 1,992,032 996,016 498,008 249,004 124,502 62,251 186,754 93,377 280,132 140,066 70,033 210,100 105,050 52,525 157,576 78,788 39,394 19,697 59,092 29,546 14,773 44,320 22,160 11,080 5,540 2,770 1,385 4,156 2,078 1,039 3,118 1,559 4,678 2,339 7,018 3,509 10,528 5,264 2,632 1,316 658 329 988 494 247 742 371 1,114 557 1,672 836

More profiles

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