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57103200 = 253252711103
BaseRepresentation
bin1101100111010…
…1001101100000
310222110010212100
43121311031200
5104104300300
65355530400
71262240430
oct331651540
9128403770
1057103200
112a262530
1217159a00
13baa459b
1478262c0
15502e700
hex3675360

57103200 has 432 divisors, whose sum is σ = 253483776. Its totient is φ = 11750400.

The previous prime is 57103199. The next prime is 57103213. The reversal of 57103200 is 230175.

57103200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 71 ways as a sum of consecutive naturals, for example, 554349 + ... + 554451.

It is an arithmetic number, because the mean of its divisors is an integer number (586768).

Almost surely, 257103200 is an apocalyptic number.

57103200 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 57103200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126741888).

57103200 is an abundant number, since it is smaller than the sum of its proper divisors (196380576).

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

57103200 is a wasteful number, since it uses less digits than its factorization.

57103200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 57103200 is about 7556.6659314806. The cubic root of 57103200 is about 385.0822335165.

Adding to 57103200 its reverse (230175), we get a palindrome (57333375).

The spelling of 57103200 in words is "fifty-seven million, one hundred three thousand, two hundred".