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28467836928 = 211321544479
BaseRepresentation
bin11010100000110100…
…001011100000000000
32201110222020221202200
4122200310023200000
5431300231240203
621024500313200
72025313423056
oct324064134000
981428227680
1028467836928
1111089396263
1256259a2800
1328b8b2142b
141540b721d6
15b193799a3
hex6a0d0b800

28467836928 has 72 divisors (see below), whose sum is σ = 82220392800. Its totient is φ = 9489272832.

The previous prime is 28467836893. The next prime is 28467836977. The reversal of 28467836928 is 82963876482.

28467836928 is a `hidden beast` number, since 2 + 8 + 467 + 83 + 6 + 92 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 753808 + ... + 790671.

It is an arithmetic number, because the mean of its divisors is an integer number (1141949900).

Almost surely, 228467836928 is an apocalyptic number.

It is an amenable number.

28467836928 is an abundant number, since it is smaller than the sum of its proper divisors (53752555872).

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

28467836928 is a wasteful number, since it uses less digits than its factorization.

28467836928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544507 (or 1544484 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 28467836928 in words is "twenty-eight billion, four hundred sixty-seven million, eight hundred thirty-six thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 512 576 768 1024 1152 1536 2048 2304 3072 4608 6144 9216 18432 1544479 3088958 4633437 6177916 9266874 12355832 13900311 18533748 24711664 27800622 37067496 49423328 55601244 74134992 98846656 111202488 148269984 197693312 222404976 296539968 395386624 444809952 593079936 790773248 889619904 1186159872 1581546496 1779239808 2372319744 3163092992 3558479616 4744639488 7116959232 9489278976 14233918464 28467836928