λ
Sequence Observatory

75,641

75641
Deficient Odd Prime

Starting at 75,641, the Collatz iteration reaches 1 after 169 steps. The first transition is 226924; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 75641
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 75,642
Proper Divisor Sum 1
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #75629 ← → #75653

Radix Representation

Decimal 75641
Binary 10010011101111001 (17 bits)
Octal 0o223571
Hexadecimal 0x12779

Divisor Catalog (2)

1 75,641

Collatz Trajectory (169 steps to reach 1)

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

75,641 226,924 113,462 56,731 170,194 85,097 255,292 127,646 63,823 191,470 95,735 287,206 143,603 430,810 215,405 646,216 323,108 161,554 80,777 242,332 121,166 60,583 181,750 90,875 272,626 136,313 408,940 204,470 102,235 306,706 153,353 460,060 230,030 115,015 345,046 172,523 517,570 258,785 776,356 388,178 194,089 582,268 291,134 145,567 436,702 218,351 655,054 327,527 982,582 491,291 1,473,874 736,937 2,210,812 1,105,406 552,703 1,658,110 829,055 2,487,166 1,243,583 3,730,750

More profiles

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