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533332881 = 32292043421
BaseRepresentation
bin11111110010100…
…000001110010001
31101011120010011200
4133302200032101
52043013123011
6124531101413
716134153234
oct3762401621
91334503150
10533332881
11254063984
1212a741869
13866560b3
1450b9141b
1531c4e856
hex1fca0391

533332881 has 12 divisors (see below), whose sum is σ = 796934580. Its totient is φ = 343294560.

The previous prime is 533332859. The next prime is 533332889. The reversal of 533332881 is 188233335.

It can be written as a sum of positive squares in 2 ways, for example, as 92332881 + 441000000 = 9609^2 + 21000^2 .

It is not a de Polignac number, because 533332881 - 225 = 499778449 is a prime.

It is a super-2 number, since 2×5333328812 = 568887923911520322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (533332889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1021450 + ... + 1021971.

It is an arithmetic number, because the mean of its divisors is an integer number (66411215).

Almost surely, 2533332881 is an apocalyptic number.

It is an amenable number.

533332881 is a deficient number, since it is larger than the sum of its proper divisors (263601699).

533332881 is a wasteful number, since it uses less digits than its factorization.

533332881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043456 (or 2043453 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 533332881 is about 23094.0009742790. Note that the first 3 decimals coincide. The cubic root of 533332881 is about 810.9600368112.

The spelling of 533332881 in words is "five hundred thirty-three million, three hundred thirty-two thousand, eight hundred eighty-one".

Divisors: 1 3 9 29 87 261 2043421 6130263 18390789 59259209 177777627 533332881