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1828105223 = 7261157889
BaseRepresentation
bin110110011110110…
…1010110000000111
311201101220100220212
41230331222300013
512220443331343
6501222350035
763205431560
oct15475526007
94641810825
101828105223
11858a1056a
1243028b31b
13231980789
14134b11167
15aa75ac18
hex6cf6ac07

1828105223 has 4 divisors (see below), whose sum is σ = 2089263120. Its totient is φ = 1566947328.

The previous prime is 1828105199. The next prime is 1828105241. The reversal of 1828105223 is 3225018281.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1828105223 - 212 = 1828101127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1828105223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828105243) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 130578938 + ... + 130578951.

It is an arithmetic number, because the mean of its divisors is an integer number (522315780).

Almost surely, 21828105223 is an apocalyptic number.

1828105223 is a deficient number, since it is larger than the sum of its proper divisors (261157897).

1828105223 is an equidigital number, since it uses as much as digits as its factorization.

1828105223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261157896.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1828105223 is about 42756.3471662395. The cubic root of 1828105223 is about 1222.7389023223.

The spelling of 1828105223 in words is "one billion, eight hundred twenty-eight million, one hundred five thousand, two hundred twenty-three".

Divisors: 1 7 261157889 1828105223