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28482312 = 2331577559
BaseRepresentation
bin110110010100…
…1101100001000
31222121001101110
41230221230020
524242413222
62454250320
7464044545
oct154515410
958531343
1028482312
1115094201
1296569a0
135b93251
143ad5bcc
15277930c
hex1b29b08

28482312 has 32 divisors (see below), whose sum is σ = 71668800. Its totient is φ = 9432384.

The previous prime is 28482299. The next prime is 28482353. The reversal of 28482312 is 21328482.

It is a super-2 number, since 2×284823122 = 1622484193730688, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 28482312.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12 + ... + 7547.

It is an arithmetic number, because the mean of its divisors is an integer number (2239650).

Almost surely, 228482312 is an apocalyptic number.

It is an amenable number.

28482312 is an abundant number, since it is smaller than the sum of its proper divisors (43186488).

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

28482312 is a wasteful number, since it uses less digits than its factorization.

28482312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7725 (or 7721 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 28482312 is about 5336.8822359126. The cubic root of 28482312 is about 305.3925323115.

The spelling of 28482312 in words is "twenty-eight million, four hundred eighty-two thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 157 314 471 628 942 1256 1884 3768 7559 15118 22677 30236 45354 60472 90708 181416 1186763 2373526 3560289 4747052 7120578 9494104 14241156 28482312