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28903683263 = 7213231972813
BaseRepresentation
bin11010111010110010…
…110011010010111111
32202121100101020112112
4122322302303102333
5433143320331023
621140030124235
72042155153100
oct327262632277
982540336475
1028903683263
1111292415044
12572795067b
132958203a80
1415829c83a7
15b4276e478
hex6bacb34bf

28903683263 has 24 divisors (see below), whose sum is σ = 37783333728. Its totient is φ = 21874539456.

The previous prime is 28903683247. The next prime is 28903683269. The reversal of 28903683263 is 36238630982.

It is not a de Polignac number, because 28903683263 - 24 = 28903683247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28903683269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 971756 + ... + 1001057.

It is an arithmetic number, because the mean of its divisors is an integer number (1574305572).

Almost surely, 228903683263 is an apocalyptic number.

28903683263 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28903683263 is a deficient number, since it is larger than the sum of its proper divisors (8879650465).

28903683263 is a wasteful number, since it uses less digits than its factorization.

28903683263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972863 (or 1972856 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 28903683263 in words is "twenty-eight billion, nine hundred three million, six hundred eighty-three thousand, two hundred sixty-three".

Divisors: 1 7 13 23 49 91 161 299 637 1127 2093 14651 1972813 13809691 25646569 45374699 96667837 179525983 317622893 589871087 1256681881 2223360251 4129097609 28903683263