λ
Sequence Observatory

4,498,140

22 × 3 × 5 × 61 × 1229
Abundant Even Composite

Starting at 4,498,140, the Collatz iteration reaches 1 after 136 steps. The first transition is 2249070; the starting value is even with 48 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 3 × 5 × 61 × 1229
Distinct Prime Factors 5
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 48
Divisor Sum (σ) 12,811,680
Proper Divisor Sum 8,313,540
Digit Sum / Digital Root 30 (Root: 3)
Adjacent Primes #4498129 ← → #4498141

Radix Representation

Decimal 4498140
Binary 10001001010001011011100 (23 bits)
Octal 0o21121334
Hexadecimal 0x44A2DC

Divisor Catalog (48)

1 2 3 4 5 6 10 12 15 20 30 60 61 122 183 244 305 366 610 732 915 1,220 1,229 1,830 2,458 3,660 3,687 4,916 6,145 7,374 12,290 14,748 18,435 24,580 36,870 73,740 74,969 149,938 224,907 299,876 374,845 449,814 749,690 899,628 1,124,535 1,499,380 2,249,070 4,498,140

Collatz Trajectory (136 steps to reach 1)

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

4,498,140 2,249,070 1,124,535 3,373,606 1,686,803 5,060,410 2,530,205 7,590,616 3,795,308 1,897,654 948,827 2,846,482 1,423,241 4,269,724 2,134,862 1,067,431 3,202,294 1,601,147 4,803,442 2,401,721 7,205,164 3,602,582 1,801,291 5,403,874 2,701,937 8,105,812 4,052,906 2,026,453 6,079,360 3,039,680 1,519,840 759,920 379,960 189,980 94,990 47,495 142,486 71,243 213,730 106,865 320,596 160,298 80,149 240,448 120,224 60,112 30,056 15,028 7,514 3,757 11,272 5,636 2,818 1,409 4,228 2,114 1,057 3,172 1,586 793

More profiles

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