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27998480076 = 22371572123027
BaseRepresentation
bin11010000100110101…
…101110011011001100
32200021021002011012120
4122010311232123030
5424320102330301
620510132332540
72010554103540
oct320465563314
980237064176
1027998480076
1110968459536
125514774150
132842807c98
1414d86b5a20
15add065e36
hex684d6e6cc

27998480076 has 48 divisors (see below), whose sum is σ = 75138206976. Its totient is φ = 7948609344.

The previous prime is 27998480063. The next prime is 27998480113. The reversal of 27998480076 is 67008489972.

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, 1048326 + ... + 1074701.

It is an arithmetic number, because the mean of its divisors is an integer number (1565379312).

Almost surely, 227998480076 is an apocalyptic number.

It is an amenable number.

27998480076 is an abundant number, since it is smaller than the sum of its proper divisors (47139726900).

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

27998480076 is a wasteful number, since it uses less digits than its factorization.

27998480076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123198 (or 2123196 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 27998480076 in words is "twenty-seven billion, nine hundred ninety-eight million, four hundred eighty thousand, seventy-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 157 314 471 628 942 1099 1884 2198 3297 4396 6594 13188 2123027 4246054 6369081 8492108 12738162 14861189 25476324 29722378 44583567 59444756 89167134 178334268 333315239 666630478 999945717 1333260956 1999891434 2333206673 3999782868 4666413346 6999620019 9332826692 13999240038 27998480076