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28268660627 = 972411209251
BaseRepresentation
bin11010010100111100…
…011000011110010011
32200222002110202020122
4122110330120132103
5430343234120002
620553023300455
72020344436124
oct322474303623
980862422218
1028268660627
1110a96a16149
12558b14a72b
13288679502c
14152252604b
15b06b346a2
hex694f18793

28268660627 has 8 divisors (see below), whose sum is σ = 28678620432. Its totient is φ = 27861120000.

The previous prime is 28268660621. The next prime is 28268660683. The reversal of 28268660627 is 72606686282.

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

It is a cyclic number.

It is not a de Polignac number, because 28268660627 - 210 = 28268659603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28268660621) 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, 581249 + ... + 628002.

It is an arithmetic number, because the mean of its divisors is an integer number (3584827554).

Almost surely, 228268660627 is an apocalyptic number.

28268660627 is a deficient number, since it is larger than the sum of its proper divisors (409959805).

28268660627 is a wasteful number, since it uses less digits than its factorization.

28268660627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209589.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 28268660627 in words is "twenty-eight billion, two hundred sixty-eight million, six hundred sixty thousand, six hundred twenty-seven".

Divisors: 1 97 241 23377 1209251 117297347 291429491 28268660627