λ
Sequence Observatory

1,983,125

54 × 19 × 167
Deficient Odd Composite

Starting at 1,983,125, the Collatz iteration reaches 1 after 122 steps. The first transition is 5949376; the starting value is odd with 20 positive divisors.

Prime Factor Structure

Factorization String 5^4 × 19 × 167
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 20
Divisor Sum (σ) 2,624,160
Proper Divisor Sum 641,035
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #1983109 ← → #1983143

Radix Representation

Decimal 1983125
Binary 111100100001010010101 (21 bits)
Octal 0o7441225
Hexadecimal 0x1E4295

Divisor Catalog (20)

1 5 19 25 95 125 167 475 625 835 2,375 3,173 4,175 11,875 15,865 20,875 79,325 104,375 396,625 1,983,125

Collatz Trajectory (122 steps to reach 1)

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

1,983,125 5,949,376 2,974,688 1,487,344 743,672 371,836 185,918 92,959 278,878 139,439 418,318 209,159 627,478 313,739 941,218 470,609 1,411,828 705,914 352,957 1,058,872 529,436 264,718 132,359 397,078 198,539 595,618 297,809 893,428 446,714 223,357 670,072 335,036 167,518 83,759 251,278 125,639 376,918 188,459 565,378 282,689 848,068 424,034 212,017 636,052 318,026 159,013 477,040 238,520 119,260 59,630 29,815 89,446 44,723 134,170 67,085 201,256 100,628 50,314 25,157 75,472

More profiles

← Previous Integer #1,983,124 Browse Full Index Next Integer #1,983,126 →