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28008862343 = 7112511449209
BaseRepresentation
bin11010000101011101…
…010101001010000111
32200021222121121222222
4122011131111022013
5424330232043333
620511143042555
72011041254540
oct320535251207
980258547888
1028008862343
11109732aa920
12551814045b
132844a01837
1414d9c194c7
15adde17298
hex685755287

28008862343 has 16 divisors (see below), whose sum is σ = 35059288320. Its totient is φ = 21738120000.

The previous prime is 28008862333. The next prime is 28008862351. The reversal of 28008862343 is 34326880082.

It is a cyclic number.

It is not a de Polignac number, because 28008862343 - 224 = 27992085127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28008862294 and 28008862303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28008862333) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 705278 + ... + 743931.

It is an arithmetic number, because the mean of its divisors is an integer number (2191205520).

Almost surely, 228008862343 is an apocalyptic number.

28008862343 is a deficient number, since it is larger than the sum of its proper divisors (7050425977).

28008862343 is a wasteful number, since it uses less digits than its factorization.

28008862343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449478.

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 28008862343 in words is "twenty-eight billion, eight million, eight hundred sixty-two thousand, three hundred forty-three".

Divisors: 1 7 11 77 251 1757 2761 19327 1449209 10144463 15941299 111589093 363751459 2546260213 4001266049 28008862343