λ
Sequence Observatory

5,163,541

881 × 5861
Deficient Odd Composite

Starting at 5,163,541, the Collatz iteration reaches 1 after 131 steps. The first transition is 15490624; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 881 × 5861
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 5,170,284
Proper Divisor Sum 6,743
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #5163527 ← → #5163547

Radix Representation

Decimal 5163541
Binary 10011101100101000010101 (23 bits)
Octal 0o23545025
Hexadecimal 0x4ECA15

Divisor Catalog (4)

1 881 5,861 5,163,541

Collatz Trajectory (131 steps to reach 1)

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

5,163,541 15,490,624 7,745,312 3,872,656 1,936,328 968,164 484,082 242,041 726,124 363,062 181,531 544,594 272,297 816,892 408,446 204,223 612,670 306,335 919,006 459,503 1,378,510 689,255 2,067,766 1,033,883 3,101,650 1,550,825 4,652,476 2,326,238 1,163,119 3,489,358 1,744,679 5,234,038 2,617,019 7,851,058 3,925,529 11,776,588 5,888,294 2,944,147 8,832,442 4,416,221 13,248,664 6,624,332 3,312,166 1,656,083 4,968,250 2,484,125 7,452,376 3,726,188 1,863,094 931,547 2,794,642 1,397,321 4,191,964 2,095,982 1,047,991 3,143,974 1,571,987 4,715,962 2,357,981 7,073,944

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