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20598168704 = 27197816869
BaseRepresentation
bin10011001011101111…
…110001110010000000
31222011112002101110012
4103023233301302000
5314141112344304
613243534124052
71326304354661
oct231357616200
958145071405
1020598168704
118810147023
123baa350628
131c335b1b09
14dd5913368
1580852616e
hex4cbbf1c80

20598168704 has 32 divisors (see below), whose sum is σ = 41243766300. Its totient is φ = 10246792192.

The previous prime is 20598168649. The next prime is 20598168713. The reversal of 20598168704 is 40786189502.

It can be written as a sum of positive squares in 2 ways, for example, as 17173578304 + 3424590400 = 131048^2 + 58520^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383219 + ... + 433650.

Almost surely, 220598168704 is an apocalyptic number.

It is an amenable number.

20598168704 is an abundant number, since it is smaller than the sum of its proper divisors (20645597596).

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

20598168704 is an equidigital number, since it uses as much as digits as its factorization.

20598168704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817080 (or 817068 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 20598168704 in words is "twenty billion, five hundred ninety-eight million, one hundred sixty-eight thousand, seven hundred four".

Divisors: 1 2 4 8 16 32 64 128 197 394 788 1576 3152 6304 12608 25216 816869 1633738 3267476 6534952 13069904 26139808 52279616 104559232 160923193 321846386 643692772 1287385544 2574771088 5149542176 10299084352 20598168704