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38881268 = 229720317
BaseRepresentation
bin1001010001010…
…0011111110100
32201011101001222
42110110133310
534423200033
63505205512
7651325316
oct224243764
981141058
1038881268
111aa47088
1211030898
13809458a
1452417b6
153630598
hex25147f4

38881268 has 6 divisors (see below), whose sum is σ = 68042226. Its totient is φ = 19440632.

The previous prime is 38881211. The next prime is 38881279. The reversal of 38881268 is 86218883.

38881268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 22543504 + 16337764 = 4748^2 + 4042^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4860155 + ... + 4860162.

It is an arithmetic number, because the mean of its divisors is an integer number (11340371).

Almost surely, 238881268 is an apocalyptic number.

It is an amenable number.

38881268 is a deficient number, since it is larger than the sum of its proper divisors (29160958).

38881268 is a wasteful number, since it uses less digits than its factorization.

38881268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9720321 (or 9720319 counting only the distinct ones).

The product of its digits is 147456, while the sum is 44.

The square root of 38881268 is about 6235.4845842164. The cubic root of 38881268 is about 338.7766531771.

The spelling of 38881268 in words is "thirty-eight million, eight hundred eighty-one thousand, two hundred sixty-eight".

Divisors: 1 2 4 9720317 19440634 38881268