Search a number
-
+
20321313110 = 2571385920947
BaseRepresentation
bin10010111011001111…
…101010000101010110
31221110020010122222022
4102323033222011112
5313104224004420
613200244133142
71316403211550
oct227317520526
957406118868
1020321313110
11868894034a
123b316971b2
131bbb128737
14daac464d0
157de089c25
hex4bb3ea156

20321313110 has 32 divisors (see below), whose sum is σ = 41808856320. Its totient is φ = 6966472032.

The previous prime is 20321313109. The next prime is 20321313121. The reversal of 20321313110 is 1131312302.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 959657 + ... + 980603.

It is an arithmetic number, because the mean of its divisors is an integer number (1306526760).

Almost surely, 220321313110 is an apocalyptic number.

20321313110 is an abundant number, since it is smaller than the sum of its proper divisors (21487543210).

20321313110 is a wasteful number, since it uses less digits than its factorization.

20321313110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34820.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20321313110 its reverse (1131312302), we get a palindrome (21452625412).

The spelling of 20321313110 in words is "twenty billion, three hundred twenty-one million, three hundred thirteen thousand, one hundred ten".

Divisors: 1 2 5 7 10 14 35 70 13859 20947 27718 41894 69295 97013 104735 138590 146629 194026 209470 293258 485065 733145 970130 1466290 290304473 580608946 1451522365 2032131311 2903044730 4064262622 10160656555 20321313110