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20331204344 = 23111991160987
BaseRepresentation
bin10010111011110101…
…011000111011111000
31221110220202012012022
4102323311120323320
5313114242014334
613201240134012
71316553246143
oct227365307370
957426665168
1020331204344
118693486820
123b34a67308
131bc01ac939
14dac29d05a
157ded9082e
hex4bbd58ef8

20331204344 has 32 divisors (see below), whose sum is σ = 41795568000. Its totient is φ = 9195009120.

The previous prime is 20331204329. The next prime is 20331204347. The reversal of 20331204344 is 44340213302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331204347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562982 + ... + 598005.

It is an arithmetic number, because the mean of its divisors is an integer number (1306111500).

Almost surely, 220331204344 is an apocalyptic number.

It is an amenable number.

20331204344 is an abundant number, since it is smaller than the sum of its proper divisors (21464363656).

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

20331204344 is a wasteful number, since it uses less digits than its factorization.

20331204344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161203 (or 1161199 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20331204344 its reverse (44340213302), we get a palindrome (64671417646).

The spelling of 20331204344 in words is "twenty billion, three hundred thirty-one million, two hundred four thousand, three hundred forty-four".

Divisors: 1 2 4 8 11 22 44 88 199 398 796 1592 2189 4378 8756 17512 1160987 2321974 4643948 9287896 12770857 25541714 51083428 102166856 231036413 462072826 924145652 1848291304 2541400543 5082801086 10165602172 20331204344