Integer Profile

642,668

2^2 × 13 × 17 × 727

Prime factors, divisor sums, positional representations and sequence properties for 642,668. The prime factorization is 2^2 × 13 × 17 × 727.

Number of positive divisors: 24. Showing the recorded part of the sequence: 216.

DeficientEvenComposite

Resources

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Arithmetic properties

Positive divisors: 24
Divisor sum: 1,284,192
Proper-divisor sum: 641,524
Digit sum: 32
Digital root: 5

Number bases

Decimal: 642668
Binary: 10011100111001101100 (20 bits)
Octal: 0o2347154
Hexadecimal: 0x9CE6C

Divisor catalog (24)

1241317263452682214427278841,4542,9089,45112,35918,90224,71837,80449,436160,667321,334642,668

Showing 24 of 24.

Collatz trajectory (216 steps)

Even: n → n/2; Odd: n → 3n + 1

642,668321,334160,667482,002241,001723,004361,502180,751542,254271,127813,382406,6911,220,074610,0371,830,112915,056457,528228,764114,38257,191171,57485,787257,362128,681386,044193,02296,511289,534144,767434,302217,151651,454325,727977,182488,5911,465,774732,8872,198,6621,099,3313,297,9941,648,9974,946,9922,473,4961,236,748618,374309,187927,562463,7811,391,344695,672347,836173,91886,959260,878130,439391,318195,659586,978293,489880,468

Showing 60 of 60.

Prime factorization

Factorization: 2^2 × 13 × 17 × 727
Distinct prime factors: 4
Perfect square: No
Parity: Even