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57244900 = 2252572449
BaseRepresentation
bin1101101001011…
…1110011100100
310222201100020111
43122113303210
5104123314100
65402542404
71263400516
oct332276344
9128640214
1057244900
112a349a39
1217207a04
13bb23c2b
147861bb6
15505b6ba
hex3697ce4

57244900 has 18 divisors (see below), whose sum is σ = 124221650. Its totient is φ = 22897920.

The previous prime is 57244877. The next prime is 57244909. The reversal of 57244900 is 944275.

It can be written as a sum of positive squares in 3 ways, for example, as 11655396 + 45589504 = 3414^2 + 6752^2 .

It is not an unprimeable number, because it can be changed into a prime (57244909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 286125 + ... + 286324.

Almost surely, 257244900 is an apocalyptic number.

57244900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57244900 is an abundant number, since it is smaller than the sum of its proper divisors (66976750).

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

57244900 is a wasteful number, since it uses less digits than its factorization.

57244900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572463 (or 572456 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 57244900 is about 7566.0359502186. The cubic root of 57244900 is about 385.4004940215.

The spelling of 57244900 in words is "fifty-seven million, two hundred forty-four thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 572449 1144898 2289796 2862245 5724490 11448980 14311225 28622450 57244900