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28549028126 = 219977147979
BaseRepresentation
bin11010100101101001…
…111001100100011110
32201200122000220011002
4122211221321210132
5431432022400001
621040520430302
72030320510103
oct324551714436
981618026132
1028549028126
1111120200423
125649018392
1328cc8aaa68
14154b868aaa
15b2156646b
hex6a5a7991e

28549028126 has 8 divisors (see below), whose sum is σ = 42844992120. Its totient is φ = 14267364088.

The previous prime is 28549028111. The next prime is 28549028143. The reversal of 28549028126 is 62182094582.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3569996 + ... + 3577983.

It is an arithmetic number, because the mean of its divisors is an integer number (5355624015).

Almost surely, 228549028126 is an apocalyptic number.

28549028126 is a deficient number, since it is larger than the sum of its proper divisors (14295963994).

28549028126 is a wasteful number, since it uses less digits than its factorization.

28549028126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7149978.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 28549028126 in words is "twenty-eight billion, five hundred forty-nine million, twenty-eight thousand, one hundred twenty-six".

Divisors: 1 2 1997 3994 7147979 14295958 14274514063 28549028126