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28607429485 = 548712839157
BaseRepresentation
bin11010101001001000…
…101011101101101101
32201211200220222202101
4122221020223231231
5432042000220420
621050404255101
72031630065335
oct325110535555
981750828671
1028607429485
111115016a208
1256646a1491
13290ba1818b
14155550c0c5
15b2675060a
hex6a922bb6d

28607429485 has 16 divisors (see below), whose sum is σ = 34429977216. Its totient is φ = 22818656448.

The previous prime is 28607429471. The next prime is 28607429489. The reversal of 28607429485 is 58492470682.

It is a cyclic number.

It is not a de Polignac number, because 28607429485 - 29 = 28607428973 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 (28607429489) 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 15 ways as a sum of consecutive naturals, for example, 3119527 + ... + 3128683.

It is an arithmetic number, because the mean of its divisors is an integer number (2151873576).

Almost surely, 228607429485 is an apocalyptic number.

It is an amenable number.

28607429485 is a deficient number, since it is larger than the sum of its proper divisors (5822547731).

28607429485 is a wasteful number, since it uses less digits than its factorization.

28607429485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10932.

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 28607429485 in words is "twenty-eight billion, six hundred seven million, four hundred twenty-nine thousand, four hundred eighty-five".

Divisors: 1 5 487 1283 2435 6415 9157 45785 624821 3124105 4459459 11748431 22297295 58742155 5721485897 28607429485