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28868446862 = 279182711689
BaseRepresentation
bin11010111000101100…
…011000101010001110
32202111220002001021122
4122320230120222032
5433110310244422
621132331000542
72041246515053
oct327054305216
982456061248
1028868446862
1111274538452
125717b99152
132950b17528
14157c05502a
15b3e60dd42
hex6b8b18a8e

28868446862 has 8 divisors (see below), whose sum is σ = 43850805600. Its totient is φ = 14251511664.

The previous prime is 28868446823. The next prime is 28868446877. The reversal of 28868446862 is 26864486882.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 28868446795 and 28868446804.

It is a congruent number.

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, 91355687 + ... + 91356002.

It is an arithmetic number, because the mean of its divisors is an integer number (5481350700).

Almost surely, 228868446862 is an apocalyptic number.

28868446862 is a deficient number, since it is larger than the sum of its proper divisors (14982358738).

28868446862 is a wasteful number, since it uses less digits than its factorization.

28868446862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182711770.

The product of its digits is 56623104, while the sum is 62.

The spelling of 28868446862 in words is "twenty-eight billion, eight hundred sixty-eight million, four hundred forty-six thousand, eight hundred sixty-two".

Divisors: 1 2 79 158 182711689 365423378 14434223431 28868446862