λ
Sequence Observatory

9,931,156

22 × 167 × 14867
Deficient Even Composite

Starting at 9,931,156, the Collatz iteration reaches 1 after 83 steps. The first transition is 4965578; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 167 × 14867
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 17,484,768
Proper Divisor Sum 7,553,612
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #9931123 ← → #9931171

Radix Representation

Decimal 9931156
Binary 100101111000100110010100 (24 bits)
Octal 0o45704624
Hexadecimal 0x978994

Divisor Catalog (12)

1 2 4 167 334 668 14,867 29,734 59,468 2,482,789 4,965,578 9,931,156

Collatz Trajectory (83 steps to reach 1)

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

9,931,156 4,965,578 2,482,789 7,448,368 3,724,184 1,862,092 931,046 465,523 1,396,570 698,285 2,094,856 1,047,428 523,714 261,857 785,572 392,786 196,393 589,180 294,590 147,295 441,886 220,943 662,830 331,415 994,246 497,123 1,491,370 745,685 2,237,056 1,118,528 559,264 279,632 139,816 69,908 34,954 17,477 52,432 26,216 13,108 6,554 3,277 9,832 4,916 2,458 1,229 3,688 1,844 922 461 1,384 692 346 173 520 260 130 65 196 98 49

More profiles

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