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28300043123 = 1117151337129
BaseRepresentation
bin11010010110110100…
…000110001101110011
32201001021112010221022
4122112310012031303
5430424302334443
621000104050055
72021205253232
oct322664061563
981037463838
1028300043123
11110027002a0
12559976392b
132890132361
141526774b19
15b09782e68
hex696d06373

28300043123 has 8 divisors (see below), whose sum is σ = 32688820080. Its totient is φ = 24213940480.

The previous prime is 28300043117. The next prime is 28300043131. The reversal of 28300043123 is 32134000382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28300043123 - 26 = 28300043059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28300043092 and 28300043101.

It is not an unprimeable number, because it can be changed into a prime (28300043323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75668378 + ... + 75668751.

It is an arithmetic number, because the mean of its divisors is an integer number (4086102510).

Almost surely, 228300043123 is an apocalyptic number.

28300043123 is a deficient number, since it is larger than the sum of its proper divisors (4388776957).

28300043123 is a wasteful number, since it uses less digits than its factorization.

28300043123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151337157.

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 28300043123 in words is "twenty-eight billion, three hundred million, forty-three thousand, one hundred twenty-three".

Divisors: 1 11 17 187 151337129 1664708419 2572731193 28300043123