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28130230063 = 1323809116293
BaseRepresentation
bin11010001100101100…
…010011111100101111
32200121102222202012201
4122030230103330233
5430102314330223
620531200242331
72014044003355
oct321454237457
980542882181
1028130230063
1110a25866221
1255509103a7
132863bb7160
14150bdad7d5
15ae98dcead
hex68cb13f2f

28130230063 has 16 divisors (see below), whose sum is σ = 31650575040. Its totient is φ = 24806479104.

The previous prime is 28130230049. The next prime is 28130230067. The reversal of 28130230063 is 36003203182.

It is a cyclic number.

It is not a de Polignac number, because 28130230063 - 213 = 28130221871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28130230067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183745 + ... + 300037.

It is an arithmetic number, because the mean of its divisors is an integer number (1978160940).

Almost surely, 228130230063 is an apocalyptic number.

28130230063 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28130230063 is a deficient number, since it is larger than the sum of its proper divisors (3520344977).

28130230063 is a wasteful number, since it uses less digits than its factorization.

28130230063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117138.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 28130230063 in words is "twenty-eight billion, one hundred thirty million, two hundred thirty thousand, sixty-three".

Divisors: 1 13 23 299 809 10517 18607 116293 241891 1511809 2674739 34771607 94081037 1223053481 2163863851 28130230063