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28382845484 = 2273741668209
BaseRepresentation
bin11010011011101111…
…111101101000101100
32201021001022221102102
4122123233331220230
5431112002023414
621012222514232
72023232130440
oct323357755054
981231287372
1028382845484
11110454159a4
125601435978
1328a4334136
14153376a820
15b11b8bede
hex69bbfda2c

28382845484 has 48 divisors (see below), whose sum is σ = 59721936960. Its totient is φ = 11546634240.

The previous prime is 28382845483. The next prime is 28382845493. The reversal of 28382845484 is 48454828382.

It is not an unprimeable number, because it can be changed into a prime (28382845483) 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, 291629 + ... + 376580.

It is an arithmetic number, because the mean of its divisors is an integer number (1244207020).

Almost surely, 228382845484 is an apocalyptic number.

It is an amenable number.

28382845484 is an abundant number, since it is smaller than the sum of its proper divisors (31339091476).

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

28382845484 is a wasteful number, since it uses less digits than its factorization.

28382845484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668298 (or 668296 counting only the distinct ones).

The product of its digits is 15728640, while the sum is 56.

The spelling of 28382845484 in words is "twenty-eight billion, three hundred eighty-two million, eight hundred forty-five thousand, four hundred eighty-four".

Divisors: 1 2 4 7 14 28 37 41 74 82 148 164 259 287 518 574 1036 1148 1517 3034 6068 10619 21238 42476 668209 1336418 2672836 4677463 9354926 18709852 24723733 27396569 49447466 54793138 98894932 109586276 173066131 191775983 346132262 383551966 692264524 767103932 1013673053 2027346106 4054692212 7095711371 14191422742 28382845484