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28671117392 = 244327414131
BaseRepresentation
bin11010101100111011…
…101000100001010000
32202000010202200010202
4122230323220201100
5432204301224032
621101001314332
72033332322351
oct325473504120
982003680122
1028671117392
1111183109945
125681a959a8
13291bc86928
14155db69d28
15b2c130d62
hex6acee8850

28671117392 has 20 divisors (see below), whose sum is σ = 55563262176. Its totient is φ = 14332211040.

The previous prime is 28671117379. The next prime is 28671117407. The reversal of 28671117392 is 29371117682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137834 + ... + 276297.

Almost surely, 228671117392 is an apocalyptic number.

It is an amenable number.

28671117392 is a deficient number, since it is larger than the sum of its proper divisors (26892144784).

28671117392 is a wasteful number, since it uses less digits than its factorization.

28671117392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418466 (or 418460 counting only the distinct ones).

The product of its digits is 254016, while the sum is 47.

The spelling of 28671117392 in words is "twenty-eight billion, six hundred seventy-one million, one hundred seventeen thousand, three hundred ninety-two".

Divisors: 1 2 4 8 16 4327 8654 17308 34616 69232 414131 828262 1656524 3313048 6626096 1791944837 3583889674 7167779348 14335558696 28671117392