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20132313 = 36710771
BaseRepresentation
bin100110011001…
…1000111011001
31101212211100020
41030303013121
520123213223
61555301053
7333056535
oct114630731
941784306
1020132313
1110400783
1268aa789
13422b716
142960bc5
151b7a1e3
hex13331d9

20132313 has 4 divisors (see below), whose sum is σ = 26843088. Its totient is φ = 13421540.

The previous prime is 20132311. The next prime is 20132341. The reversal of 20132313 is 31323102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20132313 - 21 = 20132311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20132292 and 20132301.

It is not an unprimeable number, because it can be changed into a prime (20132311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3355383 + ... + 3355388.

It is an arithmetic number, because the mean of its divisors is an integer number (6710772).

Almost surely, 220132313 is an apocalyptic number.

It is an amenable number.

20132313 is a deficient number, since it is larger than the sum of its proper divisors (6710775).

20132313 is an equidigital number, since it uses as much as digits as its factorization.

20132313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710774.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 20132313 is about 4486.9046123135. The cubic root of 20132313 is about 272.0390343706.

Adding to 20132313 its reverse (31323102), we get a palindrome (51455415).

The spelling of 20132313 in words is "twenty million, one hundred thirty-two thousand, three hundred thirteen".

Divisors: 1 3 6710771 20132313