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57289850 = 2521145797
BaseRepresentation
bin1101101010001…
…0110001111010
310222210121220022
43122202301322
5104131233400
65403530442
71263645542
oct332426172
9128717808
1057289850
112a37a792
1217229a22
13bb3b527
147874322
155069b85
hex36a2c7a

57289850 has 12 divisors (see below), whose sum is σ = 106559214. Its totient is φ = 22915920.

The previous prime is 57289777. The next prime is 57289861. The reversal of 57289850 is 5898275.

It can be written as a sum of positive squares in 3 ways, for example, as 26697889 + 30591961 = 5167^2 + 5531^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 572849 + ... + 572948.

Almost surely, 257289850 is an apocalyptic number.

57289850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57289850 is a deficient number, since it is larger than the sum of its proper divisors (49269364).

57289850 is a wasteful number, since it uses less digits than its factorization.

57289850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145809 (or 1145804 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The square root of 57289850 is about 7569.0058792420. The cubic root of 57289850 is about 385.5013427134.

The spelling of 57289850 in words is "fifty-seven million, two hundred eighty-nine thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 50 1145797 2291594 5728985 11457970 28644925 57289850