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28350019194 = 2371021661117
BaseRepresentation
bin11010011001110010…
…101111011001111010
32201011202120012012220
4122121302233121322
5431030101103234
621005051144510
72022353121120
oct323162573172
981152505186
1028350019194
1111028935032
1255b2445136
13289a5ac8b3
14152d263910
15b0dd55a49
hex699caf67a

28350019194 has 32 divisors (see below), whose sum is σ = 64863609216. Its totient is φ = 8092059840.

The previous prime is 28350019189. The next prime is 28350019231. The reversal of 28350019194 is 49191005382.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287677 + ... + 373440.

It is an arithmetic number, because the mean of its divisors is an integer number (2026987788).

Almost surely, 228350019194 is an apocalyptic number.

28350019194 is an abundant number, since it is smaller than the sum of its proper divisors (36513590022).

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

28350019194 is a wasteful number, since it uses less digits than its factorization.

28350019194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662150.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 28350019194 in words is "twenty-eight billion, three hundred fifty million, nineteen thousand, one hundred ninety-four".

Divisors: 1 2 3 6 7 14 21 42 1021 2042 3063 6126 7147 14294 21441 42882 661117 1322234 1983351 3966702 4627819 9255638 13883457 27766914 675000457 1350000914 2025001371 4050002742 4725003199 9450006398 14175009597 28350019194