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57488256 = 273277129
BaseRepresentation
bin1101101101001…
…1001110000000
311000011201001200
43123103032000
5104204111011
65412101200
71265433150
oct333231600
9130151050
1057488256
112a4a5861
1217304800
13bbaa927
1478c6760
1550a8856
hex36d3380

57488256 has 96 divisors (see below), whose sum is σ = 189087600. Its totient is φ = 16422912.

The previous prime is 57488251. The next prime is 57488257. The reversal of 57488256 is 65288475.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57488251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4500 + ... + 11628.

Almost surely, 257488256 is an apocalyptic number.

57488256 is a gapful number since it is divisible by the number (56) 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 57488256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94543800).

57488256 is an abundant number, since it is smaller than the sum of its proper divisors (131599344).

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

57488256 is a wasteful number, since it uses less digits than its factorization.

57488256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7156 (or 7141 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 57488256 is about 7582.1010280792. The cubic root of 57488256 is about 385.9458522487.

The spelling of 57488256 in words is "fifty-seven million, four hundred eighty-eight thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 144 168 192 224 252 288 336 384 448 504 576 672 896 1008 1152 1344 2016 2688 4032 7129 8064 14258 21387 28516 42774 49903 57032 64161 85548 99806 114064 128322 149709 171096 199612 228128 256644 299418 342192 399224 449127 456256 513288 598836 684384 798448 898254 912512 1026576 1197672 1368768 1596896 1796508 2053152 2395344 2737536 3193792 3593016 4106304 4790688 6387584 7186032 8212608 9581376 14372064 19162752 28744128 57488256