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530549280 = 253252383193
BaseRepresentation
bin11111100111111…
…000101000100000
31100222022200210100
4133213320220200
52041310034110
6124351302400
716101410622
oct3747705040
91328280710
10530549280
11252532588
1212981aa00
1385bc00b1
1450668c12
153189ebc0
hex1f9f8a20

530549280 has 288 divisors, whose sum is σ = 1921885056. Its totient is φ = 133005312.

The previous prime is 530549273. The next prime is 530549281. The reversal of 530549280 is 82945035.

530549280 is a `hidden beast` number, since 5 + 30 + 549 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (530549281) 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, 2748864 + ... + 2749056.

It is an arithmetic number, because the mean of its divisors is an integer number (6673212).

Almost surely, 2530549280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530549280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960942528).

530549280 is an abundant number, since it is smaller than the sum of its proper divisors (1391335776).

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

530549280 is a wasteful number, since it uses less digits than its factorization.

530549280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 530549280 is about 23033.6553764269. The cubic root of 530549280 is about 809.5467056785.

The spelling of 530549280 in words is "five hundred thirty million, five hundred forty-nine thousand, two hundred eighty".