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20029163463 = 3637972493
BaseRepresentation
bin10010101001110101…
…001100011111000111
31220200212101221000000
4102221311030133013
5312004431212323
613111250252343
71306225036401
oct225165143707
956625357000
1020029163463
118548a38a61
123a6b8870b3
131b72748c1a
14d80117b71
157c35cbe43
hex4a9d4c7c7

20029163463 has 28 divisors (see below), whose sum is σ = 30109657960. Its totient is φ = 13317360336.

The previous prime is 20029163459. The next prime is 20029163471. The reversal of 20029163463 is 36436192002.

20029163463 is a `hidden beast` number, since 20 + 0 + 291 + 6 + 346 + 3 = 666.

It is not a de Polignac number, because 20029163463 - 22 = 20029163459 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 (20029163423) 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 27 ways as a sum of consecutive naturals, for example, 240045 + ... + 312537.

Almost surely, 220029163463 is an apocalyptic number.

20029163463 is a deficient number, since it is larger than the sum of its proper divisors (10080494497).

20029163463 is an frugal number, since it uses more digits than its factorization.

20029163463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72890 (or 72875 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 20029163463 in words is "twenty billion, twenty-nine million, one hundred sixty-three thousand, four hundred sixty-three".

Divisors: 1 3 9 27 81 243 379 729 1137 3411 10233 30699 72493 92097 217479 276291 652437 1957311 5871933 17615799 27474847 52847397 82424541 247273623 741820869 2225462607 6676387821 20029163463