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28383323848 = 23112411338331
BaseRepresentation
bin11010011011110001…
…110010011011001000
32201021002020020121121
4122123301302123020
5431112112330343
621012241045024
72023236162205
oct323361623310
981232206547
1028383323848
1111045712340
125601626774
1328a4470aa9
141533852cac
15b11c33aed
hex69bc726c8

28383323848 has 32 divisors (see below), whose sum is σ = 58297741920. Its totient is φ = 12847968000.

The previous prime is 28383323797. The next prime is 28383323861. The reversal of 28383323848 is 84832338382.

It is a super-2 number, since 2×283833238482 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28383323795 and 28383323804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647958 + ... + 690373.

It is an arithmetic number, because the mean of its divisors is an integer number (1821804435).

Almost surely, 228383323848 is an apocalyptic number.

It is an amenable number.

28383323848 is an abundant number, since it is smaller than the sum of its proper divisors (29914418072).

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

28383323848 is a wasteful number, since it uses less digits than its factorization.

28383323848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338589 (or 1338585 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 52.

The spelling of 28383323848 in words is "twenty-eight billion, three hundred eighty-three million, three hundred twenty-three thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 11 22 44 88 241 482 964 1928 2651 5302 10604 21208 1338331 2676662 5353324 10706648 14721641 29443282 58886564 117773128 322537771 645075542 1290151084 2580302168 3547915481 7095830962 14191661924 28383323848