λ
Sequence Observatory

5,583,971

691 × 8081
Deficient Odd Composite

Starting at 5,583,971, the Collatz iteration reaches 1 after 82 steps. The first transition is 16751914; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 691 × 8081
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 5,592,744
Proper Divisor Sum 8,773
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #5583959 ← → #5584021

Radix Representation

Decimal 5583971
Binary 10101010011010001100011 (23 bits)
Octal 0o25232143
Hexadecimal 0x553463

Divisor Catalog (4)

1 691 8,081 5,583,971

Collatz Trajectory (82 steps to reach 1)

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

5,583,971 16,751,914 8,375,957 25,127,872 12,563,936 6,281,968 3,140,984 1,570,492 785,246 392,623 1,177,870 588,935 1,766,806 883,403 2,650,210 1,325,105 3,975,316 1,987,658 993,829 2,981,488 1,490,744 745,372 372,686 186,343 559,030 279,515 838,546 419,273 1,257,820 628,910 314,455 943,366 471,683 1,415,050 707,525 2,122,576 1,061,288 530,644 265,322 132,661 397,984 198,992 99,496 49,748 24,874 12,437 37,312 18,656 9,328 4,664 2,332 1,166 583 1,750 875 2,626 1,313 3,940 1,970 985

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