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57143962 = 273391397
BaseRepresentation
bin1101100111111…
…1001010011010
310222112012210001
43121333022122
5104112101322
65400443214
71262500321
oct331771232
9128465701
1057143962
112a290117
121717950a
13bab9cc5
1478370b8
15503b827
hex367f29a

57143962 has 8 divisors (see below), whose sum is σ = 86890356. Its totient is φ = 28180512.

The previous prime is 57143959. The next prime is 57143969. The reversal of 57143962 is 26934175.

It can be written as a sum of positive squares in 2 ways, for example, as 56085121 + 1058841 = 7489^2 + 1029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (57143969) 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, 195553 + ... + 195844.

Almost surely, 257143962 is an apocalyptic number.

57143962 is a deficient number, since it is larger than the sum of its proper divisors (29746394).

57143962 is a wasteful number, since it uses less digits than its factorization.

57143962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391472.

The product of its digits is 45360, while the sum is 37.

The square root of 57143962 is about 7559.3625392622. The cubic root of 57143962 is about 385.1738395242.

The spelling of 57143962 in words is "fifty-seven million, one hundred forty-three thousand, nine hundred sixty-two".

Divisors: 1 2 73 146 391397 782794 28571981 57143962