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53178042 = 238863007
BaseRepresentation
bin1100101011011…
…0111010111010
310201001201120010
43022312322322
5102103144132
65135442350
71214002011
oct312667272
9121051503
1053178042
11280214a5
12159863b6
13b02bac8
1470c3a78
154a066cc
hex32b6eba

53178042 has 8 divisors (see below), whose sum is σ = 106356096. Its totient is φ = 17726012.

The previous prime is 53178011. The next prime is 53178043. The reversal of 53178042 is 24087135.

It is a sphenic number, since it is the product of 3 distinct primes.

53178042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (53178043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4431498 + ... + 4431509.

It is an arithmetic number, because the mean of its divisors is an integer number (13294512).

Almost surely, 253178042 is an apocalyptic number.

53178042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53178042 is a wasteful number, since it uses less digits than its factorization.

53178042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8863012.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 53178042 is about 7292.3276119494. The cubic root of 53178042 is about 376.0487195433.

The spelling of 53178042 in words is "fifty-three million, one hundred seventy-eight thousand, forty-two".

Divisors: 1 2 3 6 8863007 17726014 26589021 53178042