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53178668 = 2223578029
BaseRepresentation
bin1100101011011…
…1000100101100
310201001202102022
43022313010230
5102103204133
65135445312
71214003564
oct312670454
9121052368
1053178668
1128021a14
1215986838
13b02c18a
1470c3da4
154a06998
hex32b712c

53178668 has 12 divisors (see below), whose sum is σ = 97109040. Its totient is φ = 25433232.

The previous prime is 53178661. The next prime is 53178683. The reversal of 53178668 is 86687135.

53178668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (53178661) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 288923 + ... + 289106.

It is an arithmetic number, because the mean of its divisors is an integer number (8092420).

Almost surely, 253178668 is an apocalyptic number.

It is an amenable number.

53178668 is a deficient number, since it is larger than the sum of its proper divisors (43930372).

53178668 is a wasteful number, since it uses less digits than its factorization.

53178668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578056 (or 578054 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 53178668 is about 7292.3705336468. The cubic root of 53178668 is about 376.0501951246.

The spelling of 53178668 in words is "fifty-three million, one hundred seventy-eight thousand, six hundred sixty-eight".

Divisors: 1 2 4 23 46 92 578029 1156058 2312116 13294667 26589334 53178668