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28805441448 = 2337224494423
BaseRepresentation
bin11010110100111100…
…000010011110101000
32202100111112001002210
4122310330002132220
5432443143111243
621122200325120
72036553132600
oct326474023650
982314461083
1028805441448
1111241a14563
1256baa737a0
132940a57614
141573933c00
15b38d15933
hex6b4f027a8

28805441448 has 48 divisors (see below), whose sum is σ = 83770930080. Its totient is φ = 8230125792.

The previous prime is 28805441437. The next prime is 28805441479. The reversal of 28805441448 is 84414450882.

It is a junction number, because it is equal to n+sod(n) for n = 28805441397 and 28805441406.

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 in 11 ways as a sum of consecutive naturals, for example, 12246036 + ... + 12248387.

It is an arithmetic number, because the mean of its divisors is an integer number (1745227710).

Almost surely, 228805441448 is an apocalyptic number.

28805441448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28805441448 is an abundant number, since it is smaller than the sum of its proper divisors (54965488632).

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

28805441448 is a wasteful number, since it uses less digits than its factorization.

28805441448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24494446 (or 24494435 counting only the distinct ones).

The product of its (nonzero) digits is 1310720, while the sum is 48.

The spelling of 28805441448 in words is "twenty-eight billion, eight hundred five million, four hundred forty-one thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 49 56 84 98 147 168 196 294 392 588 1176 24494423 48988846 73483269 97977692 146966538 171460961 195955384 293933076 342921922 514382883 587866152 685843844 1028765766 1200226727 1371687688 2057531532 2400453454 3600680181 4115063064 4800906908 7201360362 9601813816 14402720724 28805441448