8,380,139

8380139

Starting at 8,380,139, the Collatz iteration reaches 1 after 181 steps. The first transition is 25140418; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 8380139

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 8,380,140

Proper Divisor Sum 1

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #8380123 ← → #8380213

Radix Representation

Decimal	8380139
Binary	11111111101111011101011 (23 bits)
Octal	0o37757353
Hexadecimal	0x7FDEEB

Divisor Catalog (2)

1 8,380,139

Collatz Trajectory (181 steps to reach 1)

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

8,380,139 25,140,418 12,570,209 37,710,628 18,855,314 9,427,657 28,282,972 14,141,486 7,070,743 21,212,230 10,606,115 31,818,346 15,909,173 47,727,520 23,863,760 11,931,880 5,965,940 2,982,970 1,491,485 4,474,456 2,237,228 1,118,614 559,307 1,677,922 838,961 2,516,884 1,258,442 629,221 1,887,664 943,832 471,916 235,958 117,979 353,938 176,969 530,908 265,454 132,727 398,182 199,091 597,274 298,637 895,912 447,956 223,978 111,989 335,968 167,984 83,992 41,996 20,998 10,499 31,498 15,749 47,248 23,624 11,812 5,906 2,953 8,860

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