λ
Sequence Observatory

1,916,072

23 × 239509
Deficient Even Composite

Starting at 1,916,072, the Collatz iteration reaches 1 after 78 steps. The first transition is 958036; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2^3 × 239509
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 3,592,650
Proper Divisor Sum 1,676,578
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #1916069 ← → #1916099

Radix Representation

Decimal 1916072
Binary 111010011110010101000 (21 bits)
Octal 0o7236250
Hexadecimal 0x1D3CA8

Divisor Catalog (8)

1 2 4 8 239,509 479,018 958,036 1,916,072

Collatz Trajectory (78 steps to reach 1)

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

1,916,072 958,036 479,018 239,509 718,528 359,264 179,632 89,816 44,908 22,454 11,227 33,682 16,841 50,524 25,262 12,631 37,894 18,947 56,842 28,421 85,264 42,632 21,316 10,658 5,329 15,988 7,994 3,997 11,992 5,996 2,998 1,499 4,498 2,249 6,748 3,374 1,687 5,062 2,531 7,594 3,797 11,392 5,696 2,848 1,424 712 356 178 89 268 134 67 202 101 304 152 76 38 19 58

More profiles

← Previous Integer #1,916,071 Browse Full Index Next Integer #1,916,073 →