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1828220384 = 2557131887
BaseRepresentation
bin110110011111000…
…0110110111100000
311201102010012220002
41230332012313200
512221011023014
6501225035132
763206421404
oct15476066740
94642105802
101828220384
11858a8a041
12430325aa8
132319c1013
14134b41104
15aa77edde
hex6cf86de0

1828220384 has 12 divisors (see below), whose sum is σ = 3599308944. Its totient is φ = 914110176.

The previous prime is 1828220369. The next prime is 1828220419. The reversal of 1828220384 is 4830228281.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28565912 + ... + 28565975.

It is an arithmetic number, because the mean of its divisors is an integer number (299942412).

Almost surely, 21828220384 is an apocalyptic number.

It is an amenable number.

1828220384 is a deficient number, since it is larger than the sum of its proper divisors (1771088560).

1828220384 is an equidigital number, since it uses as much as digits as its factorization.

1828220384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57131897 (or 57131889 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 1828220384 is about 42757.6938573633. The cubic root of 1828220384 is about 1222.7645771533.

The spelling of 1828220384 in words is "one billion, eight hundred twenty-eight million, two hundred twenty thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 32 57131887 114263774 228527548 457055096 914110192 1828220384