λ
Sequence Observatory

2,974,721

59 × 127 × 397
Deficient Odd Composite

Starting at 2,974,721, the Collatz iteration reaches 1 after 120 steps. The first transition is 8924164; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 59 × 127 × 397
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 3,056,640
Proper Divisor Sum 81,919
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #2974691 ← → #2974723

Radix Representation

Decimal 2974721
Binary 1011010110010000000001 (22 bits)
Octal 0o13262001
Hexadecimal 0x2D6401

Divisor Catalog (8)

1 59 127 397 7,493 23,423 50,419 2,974,721

Collatz Trajectory (120 steps to reach 1)

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

2,974,721 8,924,164 4,462,082 2,231,041 6,693,124 3,346,562 1,673,281 5,019,844 2,509,922 1,254,961 3,764,884 1,882,442 941,221 2,823,664 1,411,832 705,916 352,958 176,479 529,438 264,719 794,158 397,079 1,191,238 595,619 1,786,858 893,429 2,680,288 1,340,144 670,072 335,036 167,518 83,759 251,278 125,639 376,918 188,459 565,378 282,689 848,068 424,034 212,017 636,052 318,026 159,013 477,040 238,520 119,260 59,630 29,815 89,446 44,723 134,170 67,085 201,256 100,628 50,314 25,157 75,472 37,736 18,868

More profiles

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