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28613792984 = 237510960589
BaseRepresentation
bin11010101001100000…
…111101010011011000
32201212010220021211112
4122221200331103120
5432100112333414
621051152515452
72032035140660
oct325140752330
981763807745
1028613792984
11111538161a7
12566684bb88
13291013576a
1415562c71a0
15b270aad3e
hex6a983d4d8

28613792984 has 16 divisors (see below), whose sum is σ = 61315270800. Its totient is φ = 12263054112.

The previous prime is 28613792983. The next prime is 28613792989. The reversal of 28613792984 is 48929731682.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28613792983) 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, 255480239 + ... + 255480350.

It is an arithmetic number, because the mean of its divisors is an integer number (3832204425).

Almost surely, 228613792984 is an apocalyptic number.

It is an amenable number.

28613792984 is an abundant number, since it is smaller than the sum of its proper divisors (32701477816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28613792984 is a wasteful number, since it uses less digits than its factorization.

28613792984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510960602 (or 510960598 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 59.

The spelling of 28613792984 in words is "twenty-eight billion, six hundred thirteen million, seven hundred ninety-two thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 56 510960589 1021921178 2043842356 3576724123 4087684712 7153448246 14306896492 28613792984