λ
Sequence Observatory

633,487

633487
Deficient Odd Prime

Starting at 633,487, the Collatz iteration reaches 1 after 154 steps. The first transition is 1900462; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 633487
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 633,488
Proper Divisor Sum 1
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #633473 ← → #633497

Radix Representation

Decimal 633487
Binary 10011010101010001111 (20 bits)
Octal 0o2325217
Hexadecimal 0x9AA8F

Divisor Catalog (2)

1 633,487

Collatz Trajectory (154 steps to reach 1)

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

633,487 1,900,462 950,231 2,850,694 1,425,347 4,276,042 2,138,021 6,414,064 3,207,032 1,603,516 801,758 400,879 1,202,638 601,319 1,803,958 901,979 2,705,938 1,352,969 4,058,908 2,029,454 1,014,727 3,044,182 1,522,091 4,566,274 2,283,137 6,849,412 3,424,706 1,712,353 5,137,060 2,568,530 1,284,265 3,852,796 1,926,398 963,199 2,889,598 1,444,799 4,334,398 2,167,199 6,501,598 3,250,799 9,752,398 4,876,199 14,628,598 7,314,299 21,942,898 10,971,449 32,914,348 16,457,174 8,228,587 24,685,762 12,342,881 37,028,644 18,514,322 9,257,161 27,771,484 13,885,742 6,942,871 20,828,614 10,414,307 31,242,922

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