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20886469084 = 2213401662867
BaseRepresentation
bin10011011100111011…
…100011100111011100
31222220121120120020001
4103130323203213130
5320233414002314
613332313304044
71336405025605
oct233473434734
958817516201
1020886469084
11894895a3a8
12406aa05024
131c7b244560
141021d1cdac
158239c3674
hex4dcee39dc

20886469084 has 12 divisors (see below), whose sum is σ = 39362961064. Its totient is φ = 9639908784.

The previous prime is 20886469081. The next prime is 20886469129. The reversal of 20886469084 is 48096468802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20886469081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200831382 + ... + 200831485.

Almost surely, 220886469084 is an apocalyptic number.

It is an amenable number.

20886469084 is a deficient number, since it is larger than the sum of its proper divisors (18476491980).

20886469084 is a wasteful number, since it uses less digits than its factorization.

20886469084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401662884 (or 401662882 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 55.

The spelling of 20886469084 in words is "twenty billion, eight hundred eighty-six million, four hundred sixty-nine thousand, eighty-four".

Divisors: 1 2 4 13 26 52 401662867 803325734 1606651468 5221617271 10443234542 20886469084