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57253009 = 1115134469
BaseRepresentation
bin1101101001100…
…1110010010001
310222201202100211
43122121302101
5104124044014
65403044121
71263433252
oct332316221
9128652324
1057253009
112a355040
1217210641
13bb27828
147864b29
15505dcc4
hex3699c91

57253009 has 8 divisors (see below), whose sum is σ = 62873280. Its totient is φ = 51702000.

The previous prime is 57252983. The next prime is 57253037. The reversal of 57253009 is 90035275.

It is a happy number.

57253009 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 57253009 - 211 = 57250961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57253109) 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, 15574 + ... + 18895.

It is an arithmetic number, because the mean of its divisors is an integer number (7859160).

Almost surely, 257253009 is an apocalyptic number.

It is an amenable number.

57253009 is a deficient number, since it is larger than the sum of its proper divisors (5620271).

57253009 is a wasteful number, since it uses less digits than its factorization.

57253009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34631.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 57253009 is about 7566.5718129150. The cubic root of 57253009 is about 385.4186910722.

The spelling of 57253009 in words is "fifty-seven million, two hundred fifty-three thousand, nine".

Divisors: 1 11 151 1661 34469 379159 5204819 57253009