Search a number
-
+
20330311300 = 22521321202977
BaseRepresentation
bin10010111011110001…
…111110111010000100
31221110212001211011121
4102323301332322010
5313114024430200
613201205043324
71316542536415
oct227361767204
957425054147
1020330311300
118692a26872
123b346b6544
131bbcc59300
14dac10980c
157dec65e1a
hex4bbc7ee84

20330311300 has 54 divisors (see below), whose sum is σ = 47771459358. Its totient is φ = 7506570240.

The previous prime is 20330311259. The next prime is 20330311303. The reversal of 20330311300 is 311303302.

It can be written as a sum of positive squares in 9 ways, for example, as 17288568196 + 3041743104 = 131486^2 + 55152^2 .

It is not an unprimeable number, because it can be changed into a prime (20330311303) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 584589 + ... + 618388.

Almost surely, 220330311300 is an apocalyptic number.

20330311300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330311300 is an abundant number, since it is smaller than the sum of its proper divisors (27441148058).

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

20330311300 is a wasteful number, since it uses less digits than its factorization.

20330311300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203017 (or 1202997 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20330311300 its reverse (311303302), we get a palindrome (20641614602).

The spelling of 20330311300 in words is "twenty billion, three hundred thirty million, three hundred eleven thousand, three hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 169 260 325 338 650 676 845 1300 1690 3380 4225 8450 16900 1202977 2405954 4811908 6014885 12029770 15638701 24059540 30074425 31277402 60148850 62554804 78193505 120297700 156387010 203303113 312774020 390967525 406606226 781935050 813212452 1016515565 1563870100 2033031130 4066062260 5082577825 10165155650 20330311300