λ
Sigma Notebook

1,231,261

1231261
Deficient Odd Prime

1,231,261 is odd and not a perfect square. Its factorization is 1231261 and its 2 divisors sum to 1,231,262.

Prime Factor Structure

Factorization String 1231261
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 1,231,262
Proper Divisor Sum 1
Digit Sum / Digital Root 16 (Root: 7)
Adjacent Primes #1231247 ← → #1231267

Radix Representation

Decimal 1231261
Binary 100101100100110011101 (21 bits)
Octal 0o4544635
Hexadecimal 0x12C99D

Divisor Catalog (2)

Collatz Trajectory (160 steps to reach 1)

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

1,231,261 3,693,784 1,846,892 923,446 461,723 1,385,170 692,585 2,077,756 1,038,878 519,439 1,558,318 779,159 2,337,478 1,168,739 3,506,218 1,753,109 5,259,328 2,629,664 1,314,832 657,416 328,708 164,354 82,177 246,532 123,266 61,633 184,900 92,450 46,225 138,676 69,338 34,669 104,008 52,004 26,002 13,001 39,004 19,502 9,751 29,254 14,627 43,882 21,941 65,824 32,912 16,456 8,228 4,114 2,057 6,172 3,086 1,543 4,630 2,315 6,946 3,473 10,420 5,210 2,605 7,816

More profiles

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