λ
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Atlas › Integer Profiles › Node 245,309

245,309

19 × 12911
Deficient Odd Composite

245,309 has the prime decomposition 19 × 12911. Its 2 distinct prime factors produce 4 positive divisors.

Prime Factor Structure

Factorization String 19 × 12911
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 258,240
Proper Divisor Sum 12,931
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #245299 ← → #245317

Radix Representation

Decimal 245309
Binary 111011111000111101 (18 bits)
Octal 0o737075
Hexadecimal 0x3BE3D

Divisor Catalog (4)

1 19 12,911 245,309

Collatz Trajectory (88 steps to reach 1)

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

245,309 735,928 367,964 183,982 91,991 275,974 137,987 413,962 206,981 620,944 310,472 155,236 77,618 38,809 116,428 58,214 29,107 87,322 43,661 130,984 65,492 32,746 16,373 49,120 24,560 12,280 6,140 3,070 1,535 4,606 2,303 6,910 3,455 10,366 5,183 15,550 7,775 23,326 11,663 34,990 17,495 52,486 26,243 78,730 39,365 118,096 59,048 29,524 14,762 7,381 22,144 11,072 5,536 2,768 1,384 692 346 173 520 260

More profiles

1,374,979 4,054,999 9,798,449 874,836 5,548,832 2,919,081 5,974,754 3,779,870 9,141,060 5,715,076 4,855,153 4,061,085 8,651,091 8,192,737 3,537,312 1,209,998
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