λ
Sequence Observatory

7,840,759

29 × 270371
Deficient Odd Composite

Starting at 7,840,759, the Collatz iteration reaches 1 after 124 steps. The first transition is 23522278; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 29 × 270371
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 8,111,160
Proper Divisor Sum 270,401
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #7840733 ← → #7840771

Radix Representation

Decimal 7840759
Binary 11101111010001111110111 (23 bits)
Octal 0o35721767
Hexadecimal 0x77A3F7

Divisor Catalog (4)

1 29 270,371 7,840,759

Collatz Trajectory (124 steps to reach 1)

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

7,840,759 23,522,278 11,761,139 35,283,418 17,641,709 52,925,128 26,462,564 13,231,282 6,615,641 19,846,924 9,923,462 4,961,731 14,885,194 7,442,597 22,327,792 11,163,896 5,581,948 2,790,974 1,395,487 4,186,462 2,093,231 6,279,694 3,139,847 9,419,542 4,709,771 14,129,314 7,064,657 21,193,972 10,596,986 5,298,493 15,895,480 7,947,740 3,973,870 1,986,935 5,960,806 2,980,403 8,941,210 4,470,605 13,411,816 6,705,908 3,352,954 1,676,477 5,029,432 2,514,716 1,257,358 628,679 1,886,038 943,019 2,829,058 1,414,529 4,243,588 2,121,794 1,060,897 3,182,692 1,591,346 795,673 2,387,020 1,193,510 596,755 1,790,266

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