Search a number
-
+
57829421 = 1313932003
BaseRepresentation
bin1101110010011…
…0100000101101
311000211001001102
43130212200231
5104301020141
65423252445
71301353616
oct334464055
9130731042
1057829421
112a709111
121744a125
13bc99cc0
147974c0d
15512499b
hex372682d

57829421 has 8 divisors (see below), whose sum is σ = 62727840. Its totient is φ = 52995312.

The previous prime is 57829399. The next prime is 57829439. The reversal of 57829421 is 12492875.

57829421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 57829421 - 218 = 57567277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57829021) 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 7 ways as a sum of consecutive naturals, for example, 14195 + ... + 17808.

It is an arithmetic number, because the mean of its divisors is an integer number (7840980).

Almost surely, 257829421 is an apocalyptic number.

It is an amenable number.

57829421 is a deficient number, since it is larger than the sum of its proper divisors (4898419).

57829421 is a wasteful number, since it uses less digits than its factorization.

57829421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32155.

The product of its digits is 40320, while the sum is 38.

The square root of 57829421 is about 7604.5657995707. The cubic root of 57829421 is about 386.7078142728.

The spelling of 57829421 in words is "fifty-seven million, eight hundred twenty-nine thousand, four hundred twenty-one".

Divisors: 1 13 139 1807 32003 416039 4448417 57829421