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57050243 = 241236723
BaseRepresentation
bin1101100110100…
…0010010000011
310222100110012222
43121220102003
5104101101433
65354441255
71261630145
oct331502203
9128313188
1057050243
112a226768
121713322b
13ba86453
147810c95
15501db98
hex3668483

57050243 has 4 divisors (see below), whose sum is σ = 57287208. Its totient is φ = 56813280.

The previous prime is 57050237. The next prime is 57050251. The reversal of 57050243 is 34205075.

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 57050243 - 28 = 57049987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57050443) 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 3 ways as a sum of consecutive naturals, for example, 118121 + ... + 118602.

It is an arithmetic number, because the mean of its divisors is an integer number (14321802).

Almost surely, 257050243 is an apocalyptic number.

57050243 is a deficient number, since it is larger than the sum of its proper divisors (236965).

57050243 is a wasteful number, since it uses less digits than its factorization.

57050243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236964.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 57050243 is about 7553.1611263100. The cubic root of 57050243 is about 384.9631560852.

The spelling of 57050243 in words is "fifty-seven million, fifty thousand, two hundred forty-three".

Divisors: 1 241 236723 57050243