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20682303 = 347146683
BaseRepresentation
bin100111011100…
…1011000111111
31102220202210020
41032321120333
520243313203
62015143223
7340540155
oct116713077
942822706
1020682303
1110746a14
126b14b13
134391b65
142a653d5
151c38153
hex13b963f

20682303 has 8 divisors (see below), whose sum is σ = 28163328. Its totient is φ = 13494744.

The previous prime is 20682293. The next prime is 20682329. The reversal of 20682303 is 30328602.

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

It is not a de Polignac number, because 20682303 - 25 = 20682271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20682373) 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, 73201 + ... + 73482.

It is an arithmetic number, because the mean of its divisors is an integer number (3520416).

Almost surely, 220682303 is an apocalyptic number.

20682303 is a deficient number, since it is larger than the sum of its proper divisors (7481025).

20682303 is a wasteful number, since it uses less digits than its factorization.

20682303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146733.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20682303 is about 4547.7800078720. The cubic root of 20682303 is about 274.4940692346.

It can be divided in two parts, 2068 and 2303, that added together give a triangular number (4371 = T93).

The spelling of 20682303 in words is "twenty million, six hundred eighty-two thousand, three hundred three".

Divisors: 1 3 47 141 146683 440049 6894101 20682303