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55830784 = 284672
BaseRepresentation
bin1101010011111…
…0100100000000
310220001111102211
43110332210000
5103243041114
65312351504
71245360652
oct324764400
9126044384
1055830784
1129573549
1216845594
13b74a389
1475b46d2
154d7c6c4
hex353e900

55830784 has 27 divisors (see below), whose sum is σ = 111682627. Its totient is φ = 27855616.

The previous prime is 55830757. The next prime is 55830787. The reversal of 55830784 is 48703855.

The square root of 55830784 is 7472.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55830787) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 119319 + ... + 119785.

Almost surely, 255830784 is an apocalyptic number.

55830784 is the 7472-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55830784

55830784 is an abundant number, since it is smaller than the sum of its proper divisors (55851843).

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

55830784 is an frugal number, since it uses more digits than its factorization.

55830784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The cubic root of 55830784 is about 382.2004923247.

The spelling of 55830784 in words is "fifty-five million, eight hundred thirty thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 16 32 64 128 256 467 934 1868 3736 7472 14944 29888 59776 119552 218089 436178 872356 1744712 3489424 6978848 13957696 27915392 55830784