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28858384000000 = 21056172792
BaseRepresentation
bin1101000111111000111011…
…01110100010010000000000
310210011211112101210011000001
412203330131232202100000
512240303432301000000
6141213205242205344
76035643441451462
oct643743556422000
9123154471704001
1028858384000000
119216854482335
1232a0b464b3854
131314445866109
1471aa78c58132
15350a15a3146a
hex1a3f1dba2400

28858384000000 has 693 divisors, whose sum is σ = 77582985616479. Its totient is φ = 10726809600000.

The previous prime is 28858383999997. The next prime is 28858384000027. The reversal of 28858384000000 is 48385882.

It is a happy number.

The square root of 28858384000000 is 5372000.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 10 ways, for example, as 28371559638016 + 486824361984 = 5326496^2 + 697728^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 365295999961 + ... + 365296000039.

Almost surely, 228858384000000 is an apocalyptic number.

28858384000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

28858384000000 is the 5372000-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28858384000000

28858384000000 is an abundant number, since it is smaller than the sum of its proper divisors (48724601616479).

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

28858384000000 is an frugal number, since it uses more digits than its factorization.

28858384000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 46.

The spelling of 28858384000000 in words is "twenty-eight trillion, eight hundred fifty-eight billion, three hundred eighty-four million", and thus it is an aban number.