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530555868 = 223255726459
BaseRepresentation
bin11111100111111…
…010001111011100
31100222100000211100
4133213322033130
52041310241433
6124351353100
716101436053
oct3747721734
91328300740
10530555868
11252537527
12129822790
1385bc30ab
145066b39a
15318a1b13
hex1f9fa3dc

530555868 has 36 divisors (see below), whose sum is σ = 1343585880. Its totient is φ = 176527776.

The previous prime is 530555833. The next prime is 530555891. The reversal of 530555868 is 868555035.

530555868 is a `hidden beast` number, since 5 + 30 + 5 + 558 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6823 + ... + 33281.

It is an arithmetic number, because the mean of its divisors is an integer number (37321830).

Almost surely, 2530555868 is an apocalyptic number.

It is an amenable number.

530555868 is an abundant number, since it is smaller than the sum of its proper divisors (813030012).

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

530555868 is a wasteful number, since it uses less digits than its factorization.

530555868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27026 (or 27021 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The square root of 530555868 is about 23033.7983841137. The cubic root of 530555868 is about 809.5500564648.

The spelling of 530555868 in words is "five hundred thirty million, five hundred fifty-five thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 557 1114 1671 2228 3342 5013 6684 10026 20052 26459 52918 79377 105836 158754 238131 317508 476262 952524 14737663 29475326 44212989 58950652 88425978 132638967 176851956 265277934 530555868