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57241087 = 167342761
BaseRepresentation
bin1101101001011…
…0110111111111
310222201011000021
43122112313333
5104123203322
65402513011
71263353431
oct332266777
9128634007
1057241087
112a347092
1217205767
13bb22287
147860651
15505a4c7
hex3696dff

57241087 has 4 divisors (see below), whose sum is σ = 57584016. Its totient is φ = 56898160.

The previous prime is 57241081. The next prime is 57241103. The reversal of 57241087 is 78014275.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57241087 - 219 = 56716799 is a prime.

It is a Duffinian number.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57241081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171214 + ... + 171547.

It is an arithmetic number, because the mean of its divisors is an integer number (14396004).

Almost surely, 257241087 is an apocalyptic number.

57241087 is a deficient number, since it is larger than the sum of its proper divisors (342929).

57241087 is a wasteful number, since it uses less digits than its factorization.

57241087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342928.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 57241087 is about 7565.7839646662. The cubic root of 57241087 is about 385.3919368416.

The spelling of 57241087 in words is "fifty-seven million, two hundred forty-one thousand, eighty-seven".

Divisors: 1 167 342761 57241087