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20627056384 = 28117324949
BaseRepresentation
bin10011001101011101…
…111110011100000000
31222020112110000220021
4103031131332130000
5314221011301014
613250445223224
71330105041424
oct231535763400
958215400807
1020627056384
118825487840
123bb7b61b14
131c3958770c
14dd96b2b84
1580ad30624
hex4cd77e700

20627056384 has 36 divisors (see below), whose sum is σ = 44916593400. Its totient is φ = 9375933440.

The previous prime is 20627056367. The next prime is 20627056399. The reversal of 20627056384 is 48365072602.

It is a self number, because there is not a number n which added to its sum of digits gives 20627056384.

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, 3659659 + ... + 3665290.

It is an arithmetic number, because the mean of its divisors is an integer number (1247683150).

Almost surely, 220627056384 is an apocalyptic number.

It is an amenable number.

20627056384 is an abundant number, since it is smaller than the sum of its proper divisors (24289537016).

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

20627056384 is an equidigital number, since it uses as much as digits as its factorization.

20627056384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7324976 (or 7324962 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 20627056384 in words is "twenty billion, six hundred twenty-seven million, fifty-six thousand, three hundred eighty-four".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 176 256 352 704 1408 2816 7324949 14649898 29299796 58599592 80574439 117199184 161148878 234398368 322297756 468796736 644595512 937593472 1289191024 1875186944 2578382048 5156764096 10313528192 20627056384