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38906568 = 233460041
BaseRepresentation
bin1001010001101…
…0101011001000
32201012122210000
42110122223020
534430002233
63505523000
7651462141
oct224325310
981178700
1038906568
111aa64098
1211043460
1380a2c4c
14524aac8
153637d13
hex251aac8

38906568 has 40 divisors (see below), whose sum is σ = 108976230. Its totient is φ = 12968640.

The previous prime is 38906563. The next prime is 38906599. The reversal of 38906568 is 86560983.

38906568 is a `hidden beast` number, since 3 + 89 + 0 + 6 + 568 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20088324 + 18818244 = 4482^2 + 4338^2 .

It is not an unprimeable number, because it can be changed into a prime (38906561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 29373 + ... + 30668.

Almost surely, 238906568 is an apocalyptic number.

It is an amenable number.

38906568 is an abundant number, since it is smaller than the sum of its proper divisors (70069662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38906568 is a wasteful number, since it uses less digits than its factorization.

38906568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60059 (or 60046 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 38906568 is about 6237.5129659184. The cubic root of 38906568 is about 338.8501177817.

The spelling of 38906568 in words is "thirty-eight million, nine hundred six thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 60041 120082 180123 240164 360246 480328 540369 720492 1080738 1440984 1621107 2161476 3242214 4322952 4863321 6484428 9726642 12968856 19453284 38906568