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28730046873 = 3115914756059
BaseRepresentation
bin11010110000011100…
…011011100110011001
32202011020122121012010
4122300130123212121
5432314342444443
621110504340133
72034646240413
oct326034334631
982136577163
1028730046873
11112033a94a0
125699774649
13292b24a548
1415679099b3
15b323c1733
hex6b071b999

28730046873 has 16 divisors (see below), whose sum is σ = 42497452800. Its totient is φ = 17117027280.

The previous prime is 28730046857. The next prime is 28730046887. The reversal of 28730046873 is 37864003782.

It is not a de Polignac number, because 28730046873 - 24 = 28730046857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28730046803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7376083 + ... + 7379976.

It is an arithmetic number, because the mean of its divisors is an integer number (2656090800).

Almost surely, 228730046873 is an apocalyptic number.

It is an amenable number.

28730046873 is a deficient number, since it is larger than the sum of its proper divisors (13767405927).

28730046873 is a wasteful number, since it uses less digits than its factorization.

28730046873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14756132.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 28730046873 in words is "twenty-eight billion, seven hundred thirty million, forty-six thousand, eight hundred seventy-three".

Divisors: 1 3 11 33 59 177 649 1947 14756059 44268177 162316649 486949947 870607481 2611822443 9576682291 28730046873