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52857893 = 1110744909
BaseRepresentation
bin1100100110100…
…0110000100101
310200110110101202
43021220300211
5102012423033
65124532245
71211166434
oct311506045
9120413352
1052857893
1127922a10
1215851085
13ac4917a
14703d11b
1549918e8
hex3268c25

52857893 has 8 divisors (see below), whose sum is σ = 58203360. Its totient is φ = 47602480.

The previous prime is 52857881. The next prime is 52857911. The reversal of 52857893 is 39875825.

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 52857893 - 24 = 52857877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52857823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21278 + ... + 23631.

It is an arithmetic number, because the mean of its divisors is an integer number (7275420).

Almost surely, 252857893 is an apocalyptic number.

It is an amenable number.

52857893 is a deficient number, since it is larger than the sum of its proper divisors (5345467).

52857893 is a wasteful number, since it uses less digits than its factorization.

52857893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45027.

The product of its digits is 604800, while the sum is 47.

The square root of 52857893 is about 7270.3433894143. The cubic root of 52857893 is about 375.2925551121.

The spelling of 52857893 in words is "fifty-two million, eight hundred fifty-seven thousand, eight hundred ninety-three".

Divisors: 1 11 107 1177 44909 493999 4805263 52857893