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28300311184 = 243157057079
BaseRepresentation
bin11010010110110101…
…000111101010010000
32201001022000202122111
4122112311013222100
5430424334424214
621000113515104
72021210450605
oct322665075220
981038022574
1028300311184
1111002873732
125599872a94
1328901c7382
1415268046ac
15b097d75c4
hex696d47a90

28300311184 has 20 divisors (see below), whose sum is σ = 56600623360. Its totient is φ = 13693698720.

The previous prime is 28300311167. The next prime is 28300311211. The reversal of 28300311184 is 48111300382.

28300311184 is an admirable number.

It is a super-2 number, since 2×283003111842 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28528044 + ... + 28529035.

It is an arithmetic number, because the mean of its divisors is an integer number (2830031168).

Almost surely, 228300311184 is an apocalyptic number.

It is an amenable number.

28300311184 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28300311184 is a wasteful number, since it uses less digits than its factorization.

28300311184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57057118 (or 57057112 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 28300311184 in words is "twenty-eight billion, three hundred million, three hundred eleven thousand, one hundred eighty-four".

Divisors: 1 2 4 8 16 31 62 124 248 496 57057079 114114158 228228316 456456632 912913264 1768769449 3537538898 7075077796 14150155592 28300311184