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57730050 = 23352741149
BaseRepresentation
bin1101110000111…
…0010000000010
311000121222202000
43130032100002
5104234330200
65421204430
71300461120
oct334162002
9130558660
1057730050
112a650494
1217400716
13bc639c1
14794a910
155105300
hex370e402

57730050 has 192 divisors, whose sum is σ = 187488000. Its totient is φ = 12787200.

The previous prime is 57730021. The next prime is 57730051. The reversal of 57730050 is 5003775.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57729996 and 57730023.

It is not an unprimeable number, because it can be changed into a prime (57730051) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 387376 + ... + 387524.

It is an arithmetic number, because the mean of its divisors is an integer number (976500).

Almost surely, 257730050 is an apocalyptic number.

57730050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 57730050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93744000).

57730050 is an abundant number, since it is smaller than the sum of its proper divisors (129757950).

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

57730050 is a wasteful number, since it uses less digits than its factorization.

57730050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 3675, while the sum is 27.

The square root of 57730050 is about 7598.0293497722. The cubic root of 57730050 is about 386.4861879034.

The spelling of 57730050 in words is "fifty-seven million, seven hundred thirty thousand, fifty".