λ
Sequence Observatory

142,950

2 × 3 × 52 × 953
Abundant Even Composite

Starting at 142,950, the Collatz iteration reaches 1 after 126 steps. The first transition is 71475; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 5^2 × 953
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 354,888
Proper Divisor Sum 211,938
Digit Sum / Digital Root 21 (Root: 3)
Adjacent Primes #142949 ← → #142963

Radix Representation

Decimal 142950
Binary 100010111001100110 (18 bits)
Octal 0o427146
Hexadecimal 0x22E66

Divisor Catalog (24)

1 2 3 5 6 10 15 25 30 50 75 150 953 1,906 2,859 4,765 5,718 9,530 14,295 23,825 28,590 47,650 71,475 142,950

Collatz Trajectory (126 steps to reach 1)

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

142,950 71,475 214,426 107,213 321,640 160,820 80,410 40,205 120,616 60,308 30,154 15,077 45,232 22,616 11,308 5,654 2,827 8,482 4,241 12,724 6,362 3,181 9,544 4,772 2,386 1,193 3,580 1,790 895 2,686 1,343 4,030 2,015 6,046 3,023 9,070 4,535 13,606 6,803 20,410 10,205 30,616 15,308 7,654 3,827 11,482 5,741 17,224 8,612 4,306 2,153 6,460 3,230 1,615 4,846 2,423 7,270 3,635 10,906 5,453

More profiles

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