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20032310331 = 32111144317683
BaseRepresentation
bin10010101010000001…
…001100110000111011
31220201002022210200200
4102222001030300323
5312011232412311
613111441533243
71306263554055
oct225201146073
956632283620
1020032310331
11854a798280
123a70944223
131b732ab387
14d806d68d5
157c39ee556
hex4aa04cc3b

20032310331 has 24 divisors (see below), whose sum is σ = 31570608576. Its totient is φ = 12139046640.

The previous prime is 20032310321. The next prime is 20032310339. The reversal of 20032310331 is 13301323002.

20032310331 is a `hidden beast` number, since 2 + 0 + 0 + 323 + 10 + 331 = 666.

It is not a de Polignac number, because 20032310331 - 210 = 20032309307 is a prime.

It is a super-2 number, since 2×200323103312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20032310339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1124016 + ... + 1141698.

It is an arithmetic number, because the mean of its divisors is an integer number (1315442024).

Almost surely, 220032310331 is an apocalyptic number.

20032310331 is a deficient number, since it is larger than the sum of its proper divisors (11538298245).

20032310331 is a wasteful number, since it uses less digits than its factorization.

20032310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29143 (or 29140 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20032310331 its reverse (13301323002), we get a palindrome (33333633333).

The spelling of 20032310331 in words is "twenty billion, thirty-two million, three hundred ten thousand, three hundred thirty-one".

Divisors: 1 3 9 11 33 99 11443 17683 34329 53049 102987 125873 159147 194513 377619 583539 1132857 1750617 202346569 607039707 1821119121 2225812259 6677436777 20032310331