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20003321 = 1310314939
BaseRepresentation
bin100110001001…
…1100111111001
31101122021101202
41030103213321
520110101241
61552423545
7332011502
oct114234771
941567352
1020003321
1110322878
126847bb5
1341b4ab0
142929ba9
151b51d9b
hex13139f9

20003321 has 8 divisors (see below), whose sum is σ = 21752640. Its totient is φ = 18284112.

The previous prime is 20003317. The next prime is 20003369. The reversal of 20003321 is 12330002.

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

It is a cyclic number.

It is not a de Polignac number, because 20003321 - 22 = 20003317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20003521) 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, 6131 + ... + 8808.

It is an arithmetic number, because the mean of its divisors is an integer number (2719080).

Almost surely, 220003321 is an apocalyptic number.

It is an amenable number.

20003321 is a deficient number, since it is larger than the sum of its proper divisors (1749319).

20003321 is a wasteful number, since it uses less digits than its factorization.

20003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15055.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20003321 is about 4472.5072386750. The cubic root of 20003321 is about 271.4567851295.

Adding to 20003321 its reverse (12330002), we get a palindrome (32333323).

The spelling of 20003321 in words is "twenty million, three thousand, three hundred twenty-one".

Divisors: 1 13 103 1339 14939 194207 1538717 20003321