λ
Sequence Observatory

6,450,780

22 × 3 × 5 × 7 × 15359
Abundant Even Composite

Starting at 6,450,780, the Collatz iteration reaches 1 after 134 steps. The first transition is 3225390; the starting value is even with 48 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 3 × 5 × 7 × 15359
Distinct Prime Factors 5
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 48
Divisor Sum (σ) 20,643,840
Proper Divisor Sum 14,193,060
Digit Sum / Digital Root 30 (Root: 3)
Adjacent Primes #6450779 ← → #6450793

Radix Representation

Decimal 6450780
Binary 11000100110111001011100 (23 bits)
Octal 0o30467134
Hexadecimal 0x626E5C

Divisor Catalog (48)

1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 15,359 30,718 46,077 61,436 76,795 92,154 107,513 153,590 184,308 215,026 230,385 307,180 322,539 430,052 460,770 537,565 645,078 921,540 1,075,130 1,290,156 1,612,695 2,150,260 3,225,390 6,450,780

Collatz Trajectory (134 steps to reach 1)

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

6,450,780 3,225,390 1,612,695 4,838,086 2,419,043 7,257,130 3,628,565 10,885,696 5,442,848 2,721,424 1,360,712 680,356 340,178 170,089 510,268 255,134 127,567 382,702 191,351 574,054 287,027 861,082 430,541 1,291,624 645,812 322,906 161,453 484,360 242,180 121,090 60,545 181,636 90,818 45,409 136,228 68,114 34,057 102,172 51,086 25,543 76,630 38,315 114,946 57,473 172,420 86,210 43,105 129,316 64,658 32,329 96,988 48,494 24,247 72,742 36,371 109,114 54,557 163,672 81,836 40,918

More profiles

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