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285325488 = 243272331397
BaseRepresentation
bin10001000000011…
…011100010110000
3201212220000222200
4101000123202300
51041020403423
644151303200
710033140510
oct2100334260
9655800880
10285325488
11137071298
127b67ab00
1347160666
1429c73840
151a0b0d43
hex1101b8b0

285325488 has 240 divisors, whose sum is σ = 985460736. Its totient is φ = 75271680.

The previous prime is 285325483. The next prime is 285325517. The reversal of 285325488 is 884523582.

285325488 is a `hidden beast` number, since 285 + 325 + 48 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (285325483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 718506 + ... + 718902.

Almost surely, 2285325488 is an apocalyptic number.

285325488 is a gapful number since it is divisible by the number (28) 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 285325488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492730368).

285325488 is an abundant number, since it is smaller than the sum of its proper divisors (700135248).

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

285325488 is a wasteful number, since it uses less digits than its factorization.

285325488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 463 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The square root of 285325488 is about 16891.5803878737. The cubic root of 285325488 is about 658.3348658762.

The spelling of 285325488 in words is "two hundred eighty-five million, three hundred twenty-five thousand, four hundred eighty-eight".