λ
Sequence Observatory

3,923,143

7 × 31 × 101 × 179
Deficient Odd Composite

Starting at 3,923,143, the Collatz iteration reaches 1 after 216 steps. The first transition is 11769430; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 7 × 31 × 101 × 179
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 4,700,160
Proper Divisor Sum 777,017
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #3923099 ← → #3923159

Radix Representation

Decimal 3923143
Binary 1110111101110011000111 (22 bits)
Octal 0o16756307
Hexadecimal 0x3BDCC7

Divisor Catalog (16)

1 7 31 101 179 217 707 1,253 3,131 5,549 18,079 21,917 38,843 126,553 560,449 3,923,143

Collatz Trajectory (216 steps to reach 1)

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

3,923,143 11,769,430 5,884,715 17,654,146 8,827,073 26,481,220 13,240,610 6,620,305 19,860,916 9,930,458 4,965,229 14,895,688 7,447,844 3,723,922 1,861,961 5,585,884 2,792,942 1,396,471 4,189,414 2,094,707 6,284,122 3,142,061 9,426,184 4,713,092 2,356,546 1,178,273 3,534,820 1,767,410 883,705 2,651,116 1,325,558 662,779 1,988,338 994,169 2,982,508 1,491,254 745,627 2,236,882 1,118,441 3,355,324 1,677,662 838,831 2,516,494 1,258,247 3,774,742 1,887,371 5,662,114 2,831,057 8,493,172 4,246,586 2,123,293 6,369,880 3,184,940 1,592,470 796,235 2,388,706 1,194,353 3,583,060 1,791,530 895,765

More profiles

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