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28003080044 = 2216934135127
BaseRepresentation
bin11010000101000111…
…010001011101101100
32200021120201212011202
4122011013101131230
5424322242030134
620510415105032
72010641152532
oct320507213554
980246655152
1028003080044
1110970010565
125516212178
132843758964
1414d9152152
15add673d7e
hex6851d176c

28003080044 has 12 divisors (see below), whose sum is σ = 49034347824. Its totient is φ = 13993266384.

The previous prime is 28003080043. The next prime is 28003080089. The reversal of 28003080044 is 44008030082.

It is a junction number, because it is equal to n+sod(n) for n = 28003079989 and 28003080016.

It is not an unprimeable number, because it can be changed into a prime (28003080043) 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 3 ways as a sum of consecutive naturals, for example, 2060792 + ... + 2074335.

It is an arithmetic number, because the mean of its divisors is an integer number (4086195652).

Almost surely, 228003080044 is an apocalyptic number.

It is an amenable number.

28003080044 is a deficient number, since it is larger than the sum of its proper divisors (21031267780).

28003080044 is a wasteful number, since it uses less digits than its factorization.

28003080044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136824 (or 4136822 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The spelling of 28003080044 in words is "twenty-eight billion, three million, eighty thousand, forty-four".

Divisors: 1 2 4 1693 3386 6772 4135127 8270254 16540508 7000770011 14001540022 28003080044