λ
Sequence Observatory

1,358,759

17 × 257 × 311
Deficient Odd Composite

Starting at 1,358,759, the Collatz iteration reaches 1 after 230 steps. The first transition is 4076278; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 17 × 257 × 311
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,448,928
Proper Divisor Sum 90,169
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #1358743 ← → #1358779

Radix Representation

Decimal 1358759
Binary 101001011101110100111 (21 bits)
Octal 0o5135647
Hexadecimal 0x14BBA7

Divisor Catalog (8)

1 17 257 311 4,369 5,287 79,927 1,358,759

Collatz Trajectory (230 steps to reach 1)

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

1,358,759 4,076,278 2,038,139 6,114,418 3,057,209 9,171,628 4,585,814 2,292,907 6,878,722 3,439,361 10,318,084 5,159,042 2,579,521 7,738,564 3,869,282 1,934,641 5,803,924 2,901,962 1,450,981 4,352,944 2,176,472 1,088,236 544,118 272,059 816,178 408,089 1,224,268 612,134 306,067 918,202 459,101 1,377,304 688,652 344,326 172,163 516,490 258,245 774,736 387,368 193,684 96,842 48,421 145,264 72,632 36,316 18,158 9,079 27,238 13,619 40,858 20,429 61,288 30,644 15,322 7,661 22,984 11,492 5,746 2,873 8,620

More profiles

← Previous Integer #1,358,758 Browse Full Index Next Integer #1,358,760 →