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28073848320000 = 212365472307
BaseRepresentation
bin1100110001000011100111…
…10000011011000000000000
310200101211111202111021000000
412120201303300123000000
512134430220132220000
6135412540424000000
75625161063266500
oct630416360330000
9120354452437000
1028073848320000
118a4406354709a
123194a97000000
1312884776a7462
146d0ad2661a00
1533a3ea1c0000
hex198873c1b000

28073848320000 has 2730 divisors, whose sum is σ = 122753446345068. Its totient is φ = 6395977728000.

The previous prime is 28073848319983. The next prime is 28073848320053. The reversal of 28073848320000 is 2384837082.

28073848320000 is a `hidden beast` number, since 2 + 80 + 73 + 8 + 483 + 20 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 209 ways as a sum of consecutive naturals, for example, 91445759847 + ... + 91445760153.

Almost surely, 228073848320000 is an apocalyptic number.

28073848320000 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 28073848320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61376723172534).

28073848320000 is an abundant number, since it is smaller than the sum of its proper divisors (94679598025068).

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

28073848320000 is an frugal number, since it uses more digits than its factorization.

28073848320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 28073848320000 in words is "twenty-eight trillion, seventy-three billion, eight hundred forty-eight million, three hundred twenty thousand".