Integer Profile

640,871

7^2 × 11 × 29 × 41

Prime factors, divisor sums, positional representations and sequence properties for 640,871. The prime factorization is 7^2 × 11 × 29 × 41.

Number of positive divisors: 24. Showing the recorded part of the sequence: 123.

DeficientOddComposite

Divisor catalog (24)

1711294149772032873194515391,1891,4212,0092,2333,1578,32313,07915,63122,09958,26191,553640,871

Showing 24 of 24.

Collatz trajectory (123 steps)

Even: n → n/2; Odd: n → 3n + 1

640,8711,922,614961,3072,883,9221,441,9614,325,8842,162,9421,081,4713,244,4141,622,2074,866,6222,433,3117,299,9343,649,96710,949,9025,474,95116,424,8548,212,42724,637,28212,318,64136,955,92418,477,9629,238,98127,716,94413,858,4726,929,2363,464,6181,732,3095,196,9282,598,4641,299,232649,616324,808162,40481,20240,601121,80460,90230,45191,35445,677137,03268,51634,25817,12951,38825,69412,84738,54219,27157,81428,90786,72243,361130,08465,04232,52197,56448,78224,391

Showing 60 of 60.

Prime factorization

Factorization: 7^2 × 11 × 29 × 41
Distinct prime factors: 4
Perfect square: No
Parity: Odd

Arithmetic properties

Positive divisors: 24
Divisor sum: 861,840
Proper-divisor sum: 220,969
Digit sum: 26
Digital root: 8

Number bases

Decimal: 640871
Binary: 10011100011101100111 (20 bits)
Octal: 0o2343547
Hexadecimal: 0x9C767