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28601090324928 = 26331110127753783
BaseRepresentation
bin1101000000011001101011…
…10101000011100111000000
310202021020102011100012122000
412200030311311003213000
512222100013110344203
6140455054241544000
76011234452345062
oct640146565034700
9122236364305560
1028601090324928
119127721950050
12325b0bb345000
1312c60c06a9374
1470c42b8c1732
15348ea773d4a3
hex1a0335d439c0

28601090324928 has 448 divisors, whose sum is σ = 92970041379840. Its totient is φ = 8550047232000.

The previous prime is 28601090324897. The next prime is 28601090324951. The reversal of 28601090324928 is 82942309010682.

28601090324928 is a `hidden beast` number, since 2 + 8 + 60 + 1 + 0 + 90 + 3 + 2 + 492 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 531759925 + ... + 531813707.

Almost surely, 228601090324928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28601090324928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46485020689920).

28601090324928 is an abundant number, since it is smaller than the sum of its proper divisors (64368951054912).

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

28601090324928 is a wasteful number, since it uses less digits than its factorization.

28601090324928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54193 (or 54177 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 28601090324928 in words is "twenty-eight trillion, six hundred one billion, ninety million, three hundred twenty-four thousand, nine hundred twenty-eight".