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20676312 = 23322111361
BaseRepresentation
bin100111011011…
…1111011011000
31102220110120100
41032313323120
520243120222
62015055400
7340513536
oct116677330
942813510
1020676312
1110742468
126b11560
13438c207
142a63156
151c364ac
hex13b7ed8

20676312 has 48 divisors (see below), whose sum is σ = 56305080. Its totient is φ = 6854400.

The previous prime is 20676277. The next prime is 20676329. The reversal of 20676312 is 21367602.

It is a happy number.

20676312 is a `hidden beast` number, since 20 + 6 + 7 + 631 + 2 = 666.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14512 + ... + 15872.

Almost surely, 220676312 is an apocalyptic number.

It is an amenable number.

20676312 is an abundant number, since it is smaller than the sum of its proper divisors (35628768).

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

20676312 is a wasteful number, since it uses less digits than its factorization.

20676312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584 (or 1577 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 20676312 is about 4547.1212871442. The cubic root of 20676312 is about 274.4675626317.

The spelling of 20676312 in words is "twenty million, six hundred seventy-six thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 211 422 633 844 1266 1361 1688 1899 2532 2722 3798 4083 5064 5444 7596 8166 10888 12249 15192 16332 24498 32664 48996 97992 287171 574342 861513 1148684 1723026 2297368 2584539 3446052 5169078 6892104 10338156 20676312