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28763035448 = 237513625633
BaseRepresentation
bin11010110010011010…
…010001011100111000
32202020112201121000012
4122302122101130320
5432401314113243
621114043401052
72035526524130
oct326232213470
982215647005
1028763035448
111121aa90284
1256a8823188
13293502a904
14156c055ac0
15b3523ad18
hex6b2691738

28763035448 has 16 divisors (see below), whose sum is σ = 61635076080. Its totient is φ = 12327015168.

The previous prime is 28763035447. The next prime is 28763035459. The reversal of 28763035448 is 84453036782.

It is a junction number, because it is equal to n+sod(n) for n = 28763035396 and 28763035405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28763035447) 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, 256812761 + ... + 256812872.

It is an arithmetic number, because the mean of its divisors is an integer number (3852192255).

Almost surely, 228763035448 is an apocalyptic number.

28763035448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28763035448 is an abundant number, since it is smaller than the sum of its proper divisors (32872040632).

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

28763035448 is a wasteful number, since it uses less digits than its factorization.

28763035448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513625646 (or 513625642 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 28763035448 in words is "twenty-eight billion, seven hundred sixty-three million, thirty-five thousand, four hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 56 513625633 1027251266 2054502532 3595379431 4109005064 7190758862 14381517724 28763035448