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28243080027 = 331993524857
BaseRepresentation
bin11010010011011010…
…110011001101011011
32200220022100010021000
4122103122303031123
5430320212030102
620550311120043
72016614135121
oct322332631533
980808303230
1028243080027
1110a83534058
125582673023
1328813a9796
14151cd87911
15b0478001c
hex6936b335b

28243080027 has 16 divisors (see below), whose sum is σ = 41862674080. Its totient is φ = 18819236736.

The previous prime is 28243080013. The next prime is 28243080029. The reversal of 28243080027 is 72008034282.

It is not a de Polignac number, because 28243080027 - 28 = 28243079771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28243079973 and 28243080000.

It is not an unprimeable number, because it can be changed into a prime (28243080029) 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, 208618 + ... + 316239.

It is an arithmetic number, because the mean of its divisors is an integer number (2616417130).

Almost surely, 228243080027 is an apocalyptic number.

28243080027 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28243080027 is a deficient number, since it is larger than the sum of its proper divisors (13619594053).

28243080027 is a wasteful number, since it uses less digits than its factorization.

28243080027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526859 (or 526853 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 28243080027 in words is "twenty-eight billion, two hundred forty-three million, eighty thousand, twenty-seven".

Divisors: 1 3 9 27 1993 5979 17937 53811 524857 1574571 4723713 14171139 1046040001 3138120003 9414360009 28243080027