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20313330215244 = 22311236690820229
BaseRepresentation
bin1001001111001100100001…
…10101001110100101001100
32122220221020220112122000120
410213212100311032211030
510130303200013341434
6111111452020024540
74164406154634453
oct447462065164514
978827226478016
1020313330215244
116521920380350
122340a39232150
13b44700a31071
14503255925b9a
152535e2973349
hex127990d4e94c

20313330215244 has 48 divisors (see below), whose sum is σ = 53954774334720. Its totient is φ = 5887921800640.

The previous prime is 20313330215231. The next prime is 20313330215257. The reversal of 20313330215244 is 44251203331302.

It is an interprime number because it is at equal distance from previous prime (20313330215231) and next prime (20313330215257).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3345407079 + ... + 3345413150.

It is an arithmetic number, because the mean of its divisors is an integer number (1124057798640).

Almost surely, 220313330215244 is an apocalyptic number.

It is an amenable number.

20313330215244 is an abundant number, since it is smaller than the sum of its proper divisors (33641444119476).

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

20313330215244 is a wasteful number, since it uses less digits than its factorization.

20313330215244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6690820270 (or 6690820268 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 20313330215244 its reverse (44251203331302), we get a palindrome (64564533546546).

The spelling of 20313330215244 in words is "twenty trillion, three hundred thirteen billion, three hundred thirty million, two hundred fifteen thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 11 12 22 23 33 44 46 66 69 92 132 138 253 276 506 759 1012 1518 3036 6690820229 13381640458 20072460687 26763280916 40144921374 73599022519 80289842748 147198045038 153888865267 220797067557 294396090076 307777730534 441594135114 461666595801 615555461068 883188270228 923333191602 1692777517937 1846666383204 3385555035874 5078332553811 6771110071748 10156665107622 20313330215244