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57069223 = 83687581
BaseRepresentation
bin1101100110110…
…0111010100111
310222101102020221
43121230322213
5104102203343
65355105211
71262036401
oct331547247
9128342227
1057069223
112a239a52
1217142207
13ba91c93
147817b71
1550245ed
hex366cea7

57069223 has 4 divisors (see below), whose sum is σ = 57756888. Its totient is φ = 56381560.

The previous prime is 57069209. The next prime is 57069251. The reversal of 57069223 is 32296075.

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 57069223 - 25 = 57069191 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 (57069263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343708 + ... + 343873.

It is an arithmetic number, because the mean of its divisors is an integer number (14439222).

Almost surely, 257069223 is an apocalyptic number.

57069223 is a deficient number, since it is larger than the sum of its proper divisors (687665).

57069223 is an equidigital number, since it uses as much as digits as its factorization.

57069223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687664.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 57069223 is about 7554.4174494133. The cubic root of 57069223 is about 385.0058423806.

The spelling of 57069223 in words is "fifty-seven million, sixty-nine thousand, two hundred twenty-three".

Divisors: 1 83 687581 57069223