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57427250 = 25329892
BaseRepresentation
bin1101101100010…
…0010100110010
311000001121101012
43123010110302
5104200133000
65410510522
71265060246
oct333042462
9130047335
1057427250
112a463a41
1217295442
13bb88c2a
1478ac426
155095735
hex36c4532

57427250 has 48 divisors (see below), whose sum is σ = 112474440. Its totient is φ = 21929600.

The previous prime is 57427247. The next prime is 57427259. The reversal of 57427250 is 5272475.

It can be written as a sum of positive squares in 12 ways, for example, as 14799409 + 42627841 = 3847^2 + 6529^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57427259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 645206 + ... + 645294.

Almost surely, 257427250 is an apocalyptic number.

57427250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57427250 is a deficient number, since it is larger than the sum of its proper divisors (55047190).

57427250 is an equidigital number, since it uses as much as digits as its factorization.

57427250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 57427250 is about 7578.0769328372. The cubic root of 57427250 is about 385.8092832182.

The spelling of 57427250 in words is "fifty-seven million, four hundred twenty-seven thousand, two hundred fifty".

Divisors: 1 2 5 10 25 29 50 58 89 125 145 178 250 290 445 725 890 1450 2225 2581 3625 4450 5162 7250 7921 11125 12905 15842 22250 25810 39605 64525 79210 129050 198025 229709 322625 396050 459418 645250 990125 1148545 1980250 2297090 5742725 11485450 28713625 57427250