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57385200 = 24352172997
BaseRepresentation
bin1101101011101…
…0000011110000
310222222110200210
43122322003300
5104142311300
65405544120
71264523535
oct332720360
9128873623
1057385200
112a435394
1217275040
13bb72a52
14789ad8c
155088050
hex36ba0f0

57385200 has 240 divisors, whose sum is σ = 203424480. Its totient is φ = 13762560.

The previous prime is 57385193. The next prime is 57385213. The reversal of 57385200 is 258375.

It is a happy number.

57385200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×573852002 = 6586122358080000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 591552 + ... + 591648.

It is an arithmetic number, because the mean of its divisors is an integer number (847602).

Almost surely, 257385200 is an apocalyptic number.

57385200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57385200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101712240).

57385200 is an abundant number, since it is smaller than the sum of its proper divisors (146039280).

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

57385200 is a wasteful number, since it uses less digits than its factorization.

57385200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 57385200 is about 7575.3019741790. The cubic root of 57385200 is about 385.7150930808.

The spelling of 57385200 in words is "fifty-seven million, three hundred eighty-five thousand, two hundred".