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533666880 = 263556863
BaseRepresentation
bin11111110011110…
…001110001000000
31101012012002100000
4133303301301000
52043104320010
6124542200000
716140044055
oct3763616100
91335162300
10533666880
1125427190a
1212a883000
1386742126
1450c3b02c
1531cb87c0
hex1fcf1c40

533666880 has 168 divisors, whose sum is σ = 1903853952. Its totient is φ = 142290432.

The previous prime is 533666879. The next prime is 533666909. The reversal of 533666880 is 88666335.

It is a super-4 number, since 4×5336668804 (a number of 36 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74329 + ... + 81191.

It is an arithmetic number, because the mean of its divisors is an integer number (11332464).

Almost surely, 2533666880 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 533666880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (951926976).

533666880 is an abundant number, since it is smaller than the sum of its proper divisors (1370187072).

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

533666880 is an equidigital number, since it uses as much as digits as its factorization.

533666880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6895 (or 6873 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 533666880 is about 23101.2311360239. The cubic root of 533666880 is about 811.1292890292.

The spelling of 533666880 in words is "five hundred thirty-three million, six hundred sixty-six thousand, eight hundred eighty".