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28845869212000 = 2553175577331039
BaseRepresentation
bin1101000111100001100111…
…10010011010000101100000
310210010122020020000001021101
412203300303302122011200
512240102320004241000
6141203335343004144
76035021346510211
oct643606362320540
9123118206001241
1028845869212000
119211512183935
12329a633299654
1313131ccb6c509
1471a20cb15408
15350531ec5e6a
hex1a3c33c9a160

28845869212000 has 384 divisors, whose sum is σ = 75353122091520. Its totient is φ = 10814917017600.

The previous prime is 28845869211997. The next prime is 28845869212037. The reversal of 28845869212000 is 21296854882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27763107481 + ... + 27763108519.

It is an arithmetic number, because the mean of its divisors is an integer number (196232088780).

Almost surely, 228845869212000 is an apocalyptic number.

28845869212000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28845869212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37676561045760).

28845869212000 is an abundant number, since it is smaller than the sum of its proper divisors (46507252879520).

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

28845869212000 is a wasteful number, since it uses less digits than its factorization.

28845869212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 28845869212000 in words is "twenty-eight trillion, eight hundred forty-five billion, eight hundred sixty-nine million, two hundred twelve thousand".