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87055200 = 253252107113
BaseRepresentation
bin1010011000001…
…01101101100000
320001210212021200
411030011231200
5134241231300
612345521200
72104646151
oct514055540
9201725250
1087055200
114515a951
12251a3200
131506076b
14b7c1928
157999200
hex5305b60

87055200 has 216 divisors, whose sum is σ = 312589368. Its totient is φ = 22794240.

The previous prime is 87055153. The next prime is 87055217. The reversal of 87055200 is 255078.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 770344 + ... + 770456.

It is an arithmetic number, because the mean of its divisors is an integer number (1447173).

Almost surely, 287055200 is an apocalyptic number.

87055200 is a gapful number since it is divisible by the number (80) 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 87055200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156294684).

87055200 is an abundant number, since it is smaller than the sum of its proper divisors (225534168).

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

87055200 is a wasteful number, since it uses less digits than its factorization.

87055200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 87055200 is about 9330.3376144703. The cubic root of 87055200 is about 443.1984564670.

The spelling of 87055200 in words is "eighty-seven million, fifty-five thousand, two hundred".