λ
Sequence Observatory

7,499,191

7 × 1071313
Deficient Odd Composite

Starting at 7,499,191, the Collatz iteration reaches 1 after 279 steps. The first transition is 22497574; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 7 × 1071313
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 8,570,512
Proper Divisor Sum 1,071,321
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #7499183 ← → #7499201

Radix Representation

Decimal 7499191
Binary 11100100110110110110111 (23 bits)
Octal 0o34466667
Hexadecimal 0x726DB7

Divisor Catalog (4)

1 7 1,071,313 7,499,191

Collatz Trajectory (279 steps to reach 1)

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

7,499,191 22,497,574 11,248,787 33,746,362 16,873,181 50,619,544 25,309,772 12,654,886 6,327,443 18,982,330 9,491,165 28,473,496 14,236,748 7,118,374 3,559,187 10,677,562 5,338,781 16,016,344 8,008,172 4,004,086 2,002,043 6,006,130 3,003,065 9,009,196 4,504,598 2,252,299 6,756,898 3,378,449 10,135,348 5,067,674 2,533,837 7,601,512 3,800,756 1,900,378 950,189 2,850,568 1,425,284 712,642 356,321 1,068,964 534,482 267,241 801,724 400,862 200,431 601,294 300,647 901,942 450,971 1,352,914 676,457 2,029,372 1,014,686 507,343 1,522,030 761,015 2,283,046 1,141,523 3,424,570 1,712,285

More profiles

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