λ
Sequence Observatory

2,179,489

13 × 359 × 467
Deficient Odd Composite

Starting at 2,179,489, the Collatz iteration reaches 1 after 316 steps. The first transition is 6538468; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 13 × 359 × 467
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 2,358,720
Proper Divisor Sum 179,231
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #2179477 ← → #2179523

Radix Representation

Decimal 2179489
Binary 1000010100000110100001 (22 bits)
Octal 0o10240641
Hexadecimal 0x2141A1

Divisor Catalog (8)

1 13 359 467 4,667 6,071 167,653 2,179,489

Collatz Trajectory (316 steps to reach 1)

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

2,179,489 6,538,468 3,269,234 1,634,617 4,903,852 2,451,926 1,225,963 3,677,890 1,838,945 5,516,836 2,758,418 1,379,209 4,137,628 2,068,814 1,034,407 3,103,222 1,551,611 4,654,834 2,327,417 6,982,252 3,491,126 1,745,563 5,236,690 2,618,345 7,855,036 3,927,518 1,963,759 5,891,278 2,945,639 8,836,918 4,418,459 13,255,378 6,627,689 19,883,068 9,941,534 4,970,767 14,912,302 7,456,151 22,368,454 11,184,227 33,552,682 16,776,341 50,329,024 25,164,512 12,582,256 6,291,128 3,145,564 1,572,782 786,391 2,359,174 1,179,587 3,538,762 1,769,381 5,308,144 2,654,072 1,327,036 663,518 331,759 995,278 497,639

More profiles

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