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57481766 = 228740883
BaseRepresentation
bin1101101101000…
…1101000100110
311000011101011022
43123101220212
5104203404031
65412011142
71265405216
oct333215046
9130141138
1057481766
112a4a09a1
1217300ab2
13bba79a4
1478c4246
1550a697b
hex36d1a26

57481766 has 4 divisors (see below), whose sum is σ = 86222652. Its totient is φ = 28740882.

The previous prime is 57481763. The next prime is 57481771. The reversal of 57481766 is 66718475.

57481766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57481763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14370440 + ... + 14370443.

It is an arithmetic number, because the mean of its divisors is an integer number (21555663).

Almost surely, 257481766 is an apocalyptic number.

57481766 is a deficient number, since it is larger than the sum of its proper divisors (28740886).

57481766 is a wasteful number, since it uses less digits than its factorization.

57481766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28740885.

The product of its digits is 282240, while the sum is 44.

The square root of 57481766 is about 7581.6730343639. The cubic root of 57481766 is about 385.9313282223.

The spelling of 57481766 in words is "fifty-seven million, four hundred eighty-one thousand, seven hundred sixty-six".

Divisors: 1 2 28740883 57481766