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20132023 = 193104311
BaseRepresentation
bin100110011001…
…1000010110111
31101212210221111
41030303002313
520123211043
61555255451
7333055642
oct114630267
941783844
1020132023
111040053a
1268aa587
13422b552
142960a59
151b7a09d
hex13330b7

20132023 has 4 divisors (see below), whose sum is σ = 20236528. Its totient is φ = 20027520.

The previous prime is 20132011. The next prime is 20132053. The reversal of 20132023 is 32023102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20132023 - 217 = 20000951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20131994 and 20132012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132053) 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, 51963 + ... + 52348.

It is an arithmetic number, because the mean of its divisors is an integer number (5059132).

Almost surely, 220132023 is an apocalyptic number.

20132023 is a deficient number, since it is larger than the sum of its proper divisors (104505).

20132023 is a wasteful number, since it uses less digits than its factorization.

20132023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104504.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20132023 is about 4486.8722959318. The cubic root of 20132023 is about 272.0377281504.

Adding to 20132023 its reverse (32023102), we get a palindrome (52155125).

The spelling of 20132023 in words is "twenty million, one hundred thirty-two thousand, twenty-three".

Divisors: 1 193 104311 20132023