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20330043 = 359114859
BaseRepresentation
bin100110110001…
…1011000111011
31102020212120120
41031203120323
520201030133
62003424323
7334542156
oct115433073
942225516
1020330043
1110526298
1269850a3
13429a716
1429b2c9d
151bb8ab3
hex136363b

20330043 has 8 divisors (see below), whose sum is σ = 27566400. Its totient is φ = 13323528.

The previous prime is 20329993. The next prime is 20330047. The reversal of 20330043 is 34003302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20330043 - 26 = 20329979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20330047) 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, 57253 + ... + 57606.

It is an arithmetic number, because the mean of its divisors is an integer number (3445800).

Almost surely, 220330043 is an apocalyptic number.

20330043 is a deficient number, since it is larger than the sum of its proper divisors (7236357).

20330043 is a wasteful number, since it uses less digits than its factorization.

20330043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114921.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 20330043 is about 4508.8848954037. The cubic root of 20330043 is about 272.9267471081.

Adding to 20330043 its reverse (34003302), we get a palindrome (54333345).

The spelling of 20330043 in words is "twenty million, three hundred thirty thousand, forty-three".

Divisors: 1 3 59 177 114859 344577 6776681 20330043