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28768776030 = 2325319653067
BaseRepresentation
bin11010110010110000…
…001010111101011110
32202020221112020121100
4122302300022331132
5432404301313110
621114410413530
72035626363411
oct326260127536
982227466540
1028768776030
1111223251265
1256aa7312a6
13293628a7c7
14156cb0bb78
15b359c1bc0
hex6b2c0af5e

28768776030 has 24 divisors (see below), whose sum is σ = 74798817912. Its totient is φ = 7671673584.

The previous prime is 28768776013. The next prime is 28768776037. The reversal of 28768776030 is 3067786782.

28768776030 is a `hidden beast` number, since 28 + 7 + 6 + 8 + 7 + 7 + 603 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28768776037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159826444 + ... + 159826623.

It is an arithmetic number, because the mean of its divisors is an integer number (3116617413).

Almost surely, 228768776030 is an apocalyptic number.

28768776030 is an abundant number, since it is smaller than the sum of its proper divisors (46030041882).

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

28768776030 is a wasteful number, since it uses less digits than its factorization.

28768776030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319653080 (or 319653077 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 28768776030 in words is "twenty-eight billion, seven hundred sixty-eight million, seven hundred seventy-six thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 319653067 639306134 958959201 1598265335 1917918402 2876877603 3196530670 4794796005 5753755206 9589592010 14384388015 28768776030