Search a number
-
+
20321212314 = 23131977571747
BaseRepresentation
bin10010111011001111…
…010001011110011010
31221110012221112201010
4102323033101132122
5313104212243224
613200242034350
71316402311644
oct227317213632
957405845633
1020321212314
118688881647
123b316489b6
131bbb0c18b0
14daac1b894
157de069e29
hex4bb3d179a

20321212314 has 64 divisors (see below), whose sum is σ = 44074267776. Its totient is φ = 6209167104.

The previous prime is 20321212297. The next prime is 20321212337. The reversal of 20321212314 is 41321212302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11631189 + ... + 11632935.

It is an arithmetic number, because the mean of its divisors is an integer number (688660434).

Almost surely, 220321212314 is an apocalyptic number.

20321212314 is an abundant number, since it is smaller than the sum of its proper divisors (23753055462).

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

20321212314 is a wasteful number, since it uses less digits than its factorization.

20321212314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20321212314 its reverse (41321212302), we get a palindrome (61642424616).

The spelling of 20321212314 in words is "twenty billion, three hundred twenty-one million, two hundred twelve thousand, three hundred fourteen".

Divisors: 1 2 3 6 13 26 39 78 197 394 591 757 1182 1514 1747 2271 2561 3494 4542 5122 5241 7683 9841 10482 15366 19682 22711 29523 45422 59046 68133 136266 149129 298258 344159 447387 688318 894774 1032477 1322479 1938677 2064954 2644958 3877354 3967437 4474067 5816031 7934874 8948134 11632062 13422201 17192227 26844402 34384454 51576681 103153362 260528363 521056726 781585089 1563170178 3386868719 6773737438 10160606157 20321212314