8,437,790

2 × 5 × 843779

Starting at 8,437,790, the Collatz iteration reaches 1 after 129 steps. The first transition is 4218895; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 5 × 843779

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 15,188,040

Proper Divisor Sum 6,750,250

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #8437789 ← → #8437837

Radix Representation

Decimal	8437790
Binary	100000001100000000011110 (24 bits)
Octal	0o40140036
Hexadecimal	0x80C01E

Divisor Catalog (8)

1 2 5 10 843,779 1,687,558 4,218,895 8,437,790

Collatz Trajectory (129 steps to reach 1)

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

8,437,790 4,218,895 12,656,686 6,328,343 18,985,030 9,492,515 28,477,546 14,238,773 42,716,320 21,358,160 10,679,080 5,339,540 2,669,770 1,334,885 4,004,656 2,002,328 1,001,164 500,582 250,291 750,874 375,437 1,126,312 563,156 281,578 140,789 422,368 211,184 105,592 52,796 26,398 13,199 39,598 19,799 59,398 29,699 89,098 44,549 133,648 66,824 33,412 16,706 8,353 25,060 12,530 6,265 18,796 9,398 4,699 14,098 7,049 21,148 10,574 5,287 15,862 7,931 23,794 11,897 35,692 17,846 8,923

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