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57480018 = 2337258919
BaseRepresentation
bin1101101101000…
…1001101010010
311000011021202120
43123101031102
5104203330033
65411555110
71265400141
oct333211522
9130137676
1057480018
112a49a652
12172bba96
13bba6c5b
1478c3758
1550a61b3
hex36d1352

57480018 has 16 divisors (see below), whose sum is σ = 118067520. Its totient is φ = 18642096.

The previous prime is 57480011. The next prime is 57480019. The reversal of 57480018 is 81008475.

It is a happy number.

57480018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57480011) 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 in 7 ways as a sum of consecutive naturals, for example, 129238 + ... + 129681.

It is an arithmetic number, because the mean of its divisors is an integer number (7379220).

Almost surely, 257480018 is an apocalyptic number.

57480018 is an abundant number, since it is smaller than the sum of its proper divisors (60587502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57480018 is a wasteful number, since it uses less digits than its factorization.

57480018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258961.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 57480018 is about 7581.5577555012. The cubic root of 57480018 is about 385.9274161713.

The spelling of 57480018 in words is "fifty-seven million, four hundred eighty thousand, eighteen".

Divisors: 1 2 3 6 37 74 111 222 258919 517838 776757 1553514 9580003 19160006 28740009 57480018