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28112500848 = 2433071907743
BaseRepresentation
bin11010001011101000…
…101011100001110000
32200120012122000022010
4122023220223201300
5430033300011343
620525324242520
72013440212605
oct321350534160
980505560263
1028112500848
1110a16856a83
1255469a0440
13286031a4b3
1415098b66ac
15ae8089d33
hex68ba2b870

28112500848 has 40 divisors (see below), whose sum is σ = 72860558848. Its totient is φ = 9340304832.

The previous prime is 28112500837. The next prime is 28112500861. The reversal of 28112500848 is 84800521182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939136 + ... + 968607.

Almost surely, 228112500848 is an apocalyptic number.

It is an amenable number.

28112500848 is an abundant number, since it is smaller than the sum of its proper divisors (44748058000).

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

28112500848 is a wasteful number, since it uses less digits than its factorization.

28112500848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908061 (or 1908055 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The spelling of 28112500848 in words is "twenty-eight billion, one hundred twelve million, five hundred thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 307 614 921 1228 1842 2456 3684 4912 7368 14736 1907743 3815486 5723229 7630972 11446458 15261944 22892916 30523888 45785832 91571664 585677101 1171354202 1757031303 2342708404 3514062606 4685416808 7028125212 9370833616 14056250424 28112500848