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57828429 = 326425381
BaseRepresentation
bin1101110010011…
…0010001001101
311000210222200200
43130212101031
5104301002204
65423244113
71301351001
oct334462115
9130728620
1057828429
112a70839a
1217449639
13bc99709
147974701
155124539
hex372644d

57828429 has 6 divisors (see below), whose sum is σ = 83529966. Its totient is φ = 38552280.

The previous prime is 57828413. The next prime is 57828431. The reversal of 57828429 is 92482875.

57828429 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., 57790404 + 38025 = 7602^2 + 195^2 .

It is not a de Polignac number, because 57828429 - 24 = 57828413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57828439) 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 5 ways as a sum of consecutive naturals, for example, 3212682 + ... + 3212699.

It is an arithmetic number, because the mean of its divisors is an integer number (13921661).

Almost surely, 257828429 is an apocalyptic number.

It is an amenable number.

57828429 is a deficient number, since it is larger than the sum of its proper divisors (25701537).

57828429 is a wasteful number, since it uses less digits than its factorization.

57828429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6425387 (or 6425384 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 57828429 is about 7604.5005753172. The cubic root of 57828429 is about 386.7056030780.

The spelling of 57828429 in words is "fifty-seven million, eight hundred twenty-eight thousand, four hundred twenty-nine".

Divisors: 1 3 9 6425381 19276143 57828429