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28057301334 = 23212979120097
BaseRepresentation
bin11010001000010110…
…000111000101010110
32200102100202120210200
4122020112013011112
5424430132120314
620520033201330
72012200061226
oct321026070526
980370676720
1028057301334
1110998684847
125530400246
132851a6156a
141502428086
15ae32d4709
hex688587156

28057301334 has 24 divisors (see below), whose sum is σ = 60796009560. Its totient is φ = 9351635328.

The previous prime is 28057301323. The next prime is 28057301339. The reversal of 28057301334 is 43310375082.

28057301334 is a `hidden beast` number, since 2 + 80 + 573 + 0 + 1 + 3 + 3 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28057301339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173574 + ... + 293670.

It is an arithmetic number, because the mean of its divisors is an integer number (2533167065).

Almost surely, 228057301334 is an apocalyptic number.

28057301334 is an abundant number, since it is smaller than the sum of its proper divisors (32738708226).

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

28057301334 is a wasteful number, since it uses less digits than its factorization.

28057301334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133084 (or 133081 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 28057301334 in words is "twenty-eight billion, fifty-seven million, three hundred one thousand, three hundred thirty-four".

Divisors: 1 2 3 6 9 18 12979 25958 38937 77874 116811 120097 233622 240194 360291 720582 1080873 2161746 1558738963 3117477926 4676216889 9352433778 14028650667 28057301334