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28033272157 = 1122711226781
BaseRepresentation
bin11010000110111010…
…011100100101011101
32200100200112202222011
4122012322130211131
5424403004202112
620513414151221
72011455611302
oct320672344535
980320482864
1028033272157
1110986062320
125524352511
132849a9a207
1414dd1710a9
15ae1139aa7
hex686e9c95d

28033272157 has 8 divisors (see below), whose sum is σ = 30716475552. Its totient is φ = 25372522800.

The previous prime is 28033272151. The next prime is 28033272167. The reversal of 28033272157 is 75127233082.

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

It is a cyclic number.

It is not a de Polignac number, because 28033272157 - 227 = 27899054429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28033272151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5610894 + ... + 5615887.

It is an arithmetic number, because the mean of its divisors is an integer number (3839559444).

Almost surely, 228033272157 is an apocalyptic number.

It is an amenable number.

28033272157 is a deficient number, since it is larger than the sum of its proper divisors (2683203395).

28033272157 is a wasteful number, since it uses less digits than its factorization.

28033272157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11227019.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 28033272157 in words is "twenty-eight billion, thirty-three million, two hundred seventy-two thousand, one hundred fifty-seven".

Divisors: 1 11 227 2497 11226781 123494591 2548479287 28033272157