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64028250 = 232531113199
BaseRepresentation
bin1111010000111…
…1111001011010
311110110222020200
43310033321122
5112342401000
610204203030
71405142166
oct364177132
9143428220
1064028250
1133162410
1219539476
131035a650
148709ca6
15594b500
hex3d0fe5a

64028250 has 192 divisors, whose sum is σ = 204422400. Its totient is φ = 14256000.

The previous prime is 64028249. The next prime is 64028267. The reversal of 64028250 is 5282046.

64028250 is a `hidden beast` number, since 6 + 402 + 8 + 250 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 321651 + ... + 321849.

It is an arithmetic number, because the mean of its divisors is an integer number (1064700).

Almost surely, 264028250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64028250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102211200).

64028250 is an abundant number, since it is smaller than the sum of its proper divisors (140394150).

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

64028250 is a wasteful number, since it uses less digits than its factorization.

64028250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 64028250 is about 8001.7654302035. The cubic root of 64028250 is about 400.0588455093.

The spelling of 64028250 in words is "sixty-four million, twenty-eight thousand, two hundred fifty".