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57140141 = 137341617
BaseRepresentation
bin1101100111111…
…0001110101101
310222112000112112
43121332032231
5104111441031
65400413405
71262453222
oct331761655
9128460475
1057140141
112a288263
1217177265
13bab8346
147835949
15503a62b
hex367e3ad

57140141 has 4 divisors (see below), whose sum is σ = 57183132. Its totient is φ = 57097152.

The previous prime is 57140137. The next prime is 57140207. The reversal of 57140141 is 14104175.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 56942116 + 198025 = 7546^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 57140141 - 22 = 57140137 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 (57140131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19436 + ... + 22181.

It is an arithmetic number, because the mean of its divisors is an integer number (14295783).

Almost surely, 257140141 is an apocalyptic number.

It is an amenable number.

57140141 is a deficient number, since it is larger than the sum of its proper divisors (42991).

57140141 is a wasteful number, since it uses less digits than its factorization.

57140141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42990.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 57140141 is about 7559.1098020865. The cubic root of 57140141 is about 385.1652542950.

The spelling of 57140141 in words is "fifty-seven million, one hundred forty thousand, one hundred forty-one".

Divisors: 1 1373 41617 57140141