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28789630027 = 292179455597
BaseRepresentation
bin11010110011111111…
…101110010001001011
32202022101202201220121
4122303333232101023
5432430121130102
621120433404111
72036301550264
oct326377562113
982271681817
1028789630027
1111233aa5174
1256b5709637
13293a6ac852
1415717b996b
15b37740b37
hex6b3fee44b

28789630027 has 8 divisors (see below), whose sum is σ = 29796109200. Its totient is φ = 27784066464.

The previous prime is 28789630007. The next prime is 28789630069. The reversal of 28789630027 is 72003698782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28789630027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28789630007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164608 + ... + 290989.

It is an arithmetic number, because the mean of its divisors is an integer number (3724513650).

Almost surely, 228789630027 is an apocalyptic number.

28789630027 is a deficient number, since it is larger than the sum of its proper divisors (1006479173).

28789630027 is a wasteful number, since it uses less digits than its factorization.

28789630027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457805.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 28789630027 in words is "twenty-eight billion, seven hundred eighty-nine million, six hundred thirty thousand, twenty-seven".

Divisors: 1 29 2179 63191 455597 13212313 992745863 28789630027